Few post back I mentioned the issues with being able to shift the C6 into reverse and then generally the shift began to get worse. Additionally the clutch fluid would become low.
As most Corvette owners know, the C6 has a separate hydraulic clutch. I had the fluid flushed numerous times and eventually we found a small leak at the clutch slave cylinder.
Replaced the cylinder and stopped the leak. This stopped the fluid usage and shifting improved, but only slightly.
Eventually it began getting much worse. With the ignition on the car would not go into reverse at all. The only way to get it into reverse was to turn the car off, put the that trans in reverse and start the car. Even then, it would sometimes kick itself out of gear when started Then highway shifting began slipping and RPM when up.
I do auto cross the car and I guess some spirited street driving. Here is what my clutch and flywheel now look like, yes… I saved them!!!
Clutch1
Clutch 2
Those shiny rivets – not a good thing!!!!
The Flywheel, interesting coloration, don’t you think?
With manual transmissions in demand, it isn’t surprising to find that a fair number of vehicles—particularly muscle-era vehicles—that left the factory with an automatic transmission are being rebuilt with a manual. Frederick estimated that about 60 percent of American Powertrain’s classic muscle car customers are replacing an automatic transmission with a manual.
“[The conversion] is time-consuming, but not terribly complicated,” Frederick said. “Most of the parts bolt in.”
“It isn’t for the faint-of-heart or for anyone short on patience, but it’s do-able,” Hill added. “It’s just a matter of working through the process.”
Obviously you’ll need a pedal assembly; fortunately, according to Hill, there are a lot of aftermarket units that work quite well.
“That also gives you the option of using a hydraulic release bearing instead of a mechanical clutch linkage, which, depending on the application, can have some advantages,” Hill said. “It’s going to take a longer or shorter drive shaft. It’s going to take a different yoke on that driveshaft. The power bushing in the motor for the transmission input shaft may have to be changed. The starter could be affected by the diameter of the flywheel you put into the vehicle.
“You start at the back of the crankshaft and start matching componentry as well as possible—and if you can’t match it, then you have to compensate for it,” Hill continued. “I don’t think we’ve ever run into something we couldn’t convert, as long as we’re talking about American muscle.”
Many of the same issues crop up even when swapping one manual for another—for example, the customer who has a 454 and a Muncie and wants to put a modern six-speed in it.
Like many other projects, it’s significantly easier with older (i.e., pre-computer) hardware. If either the engine or the transmission came with computer controls, it gets a little more involved. And keep in mind that even some modern manuals now have computer controls—the GM transmission that comes with the LS engine, for example, with its skip-shift function.
Of course, some customers will want to go the other way and replace a factory manual with a new, high-tech automatic.
“It’s most important to make sure you have all the correct components—and that you make the finished job look appealing to the customer,” said Poff of TCI. “It’s the mounting that’s most likely to give you trouble.”
According to the experts, you’ll need to ensure that you have the right crossmembers and that there’s enough room inside the tunnel.
“There is no one-size-fits-all solution; every application is unique,” added Poff. “But once the physical installation is accomplished, it’s pretty straightforward to make everything operational.”
Either way, Nichols suggested finding out from the customer how critical it is to keep the car looking original, versus the cost to locate and install all of the correct original components.
As with so much else in hot rodding, the best results generally come from purchasing and installing complete systems.
“That goes for any product from any company in this business,” Frederick said. “We say, ‘Look, we have a turnkey kit. We figured it all out, and all you to do it plug and play.’ Buy it all from one source and you know all the parts are going to work together.”
Meanwhile, manual-shift enthusiasts are upgrading to modern units packing more heavy-duty horsepower capacity—and more gear ratios.
“The generation that is now in their 60s can afford to build the cars that they wanted to build when they were in high school,” said Dick Hill, sales manager for Centerforce Clutches in Prescott, Arizona. And while those folks are not usually looking to build a race car, “they do want a four- or five-speed manual transmission,” he said.
More surprisingly, the trend extends beyond muscle cars and into traditional hot rods as well.
“I have friends who are building Deuce roadsters and they are putting LS motors in them, with a five- or six-speed manual transmission,” Hill said. “There are people who put Cadillac V-8s in 1949–1951 Mercs, and they want a stick. They want a three-pedal car. So that, too, is contributing to the growth of the high-performance clutch market.”
Hot rodders who already own or have owned multiple cars are now looking for something different.
“It’s like the people who buy their first Harley, they want it with every doo-dad they can get, where older bikers are turning back to the Knucklehead or even Flathead motors,” Hill said. “It’s the same with the hot rodder who already has two or three or four toys in the garage. The newest toy is going to be a stick car. And it’s for the same reason that someone will buy a brand-new Camaro, put 1,000 horsepower in it, and drive it on the street while blowing cold air and playing tunes. They want a manual not because they’re going to race it, but because they can have it. That’s what we hear all the time: ‘Because I can.’”
Rating the Ratios
American Powertrain of Cookeville, Tennessee, sells a broad range of high-performance drivetrain components, from complete crate engines to driveshafts and pedals. The company also distributes Tremec transmissions.
“The hot market right now is for the Magnum six-speed in a classic muscle car,” said Gray Frederick. “The Magnum is Tremec’s replacement for the T-56 is the aftermarket version of what you would get in a new Shelby GT500 or Camaro SS.” Frederick added that people are putting them into classic Mustangs Cougars, Camaros Firebirds, Barracudas and Challengers.
“The cars that people spend the most money on are the cars that [are] getting Magnum six-speeds,” Frederick added.
The Magnum is available with two sets of ratios, with the closer-ratio unit being the more popular of the two.
“The wide-ratio box has a 0.5 overdrive, which is very tall; a lot of engines can’t pull that much overdrive,” Frederick said.
But when it comes to overdrive, isn’t more better?
“That’s a myth,” Frederick said. “You can say, ‘Alright, I’m at the ragged edge of my cam, where if I’m on flat ground I can hold 70 mph all day.’ In a perfect world, that would be great. [I]n the real world, at some point you’re going to have to slow down for construction, and then speed up again; or you’re going to hit a rise, or something else that causes your engine to run out of breath. [T]hen you’re going to have to shift and that’s what you’re trying to avoid.
“You want to put it in sixth gear and leave it sixth gear,” he continued. “You don’t want to run down the highway at your cam’s peak performance, which would be 3,000–4,000 rpm. But you do want an rpm where your engine can pull your car up hills, and pass without dropping a gear. If every time you put your foot in the gas the engine lugs and you have to shift, that becomes very inefficient. We’re helping the customer understand that, even on the highway, you want to stay in your powerband. Otherwise the overdrive doesn’t do you any good.”
Frederick recommends the wide-ratio unit mostly for torquey big blocks.
“A Pontiac 455 will pull a stump out of the ground at 800 rpm; it doesn’t have trouble pulling a car at whatever rpm you’re running,” he said. “A Mopar 440 and some other big blocks with a lot of low-end grunt can usually handle the taller overdrive, too. And of course we’re dealing with a lot of electronically fuel-injected (EFI) engines now, and most of them have computers that can cope with low rpm very well.
They can retard the spark, they can meter the fuel differently, they can do all kinds of things.
“We help the customer choose a rearend ratio and a gear set that’s going to give them the best performance, from top to bottom,” Frederick said.
Pedal Pressure Another concern, according to Hill of Centerforce Clutches, is the physical effort once associated with a high-performance clutch.
“Our customers all ask, ‘How stiff is the pedal?’” he said. “That’s why we’ve been very successful, whether it’s a single-disc clutch for mild upgrade vehicle, or dual-disc unit that can hold 1,300 lbs./ft. of torque, we’ve been very successful in making them streetable.”
The average consumer, Hill said, could climb into a car with a Centerforce dual-disc clutch, push the pedal to the floor, and not realize that the car was modified.
“[T]he person who has a $75,000 Camaro or Corvette wants race-car performance without the race-car effort, so this is pretty significant,” he said.
Still, selecting the optimal clutch for any particular application is a complex task best left to experts.
“There are different linings and different friction materials on the pressure plate,” Hill said. “Heat is a factor. The first thing you have to know is how the vehicle is going to be used. Drag racers realize they are going to drive their car until they break it, where hot rodders don’t beat their cars up as bad. They are very proud of their cars and they want to drive them, not break them. And unless the car has been tubbed, a street machine generally runs smaller tires, so you want to tune the clutch for that.”
McLeod Racing of Placentia, California, offers its RST and RXT Street Twin clutches, both double-disc units that hold up to 1,000 horsepower, with the pedal pressure of a stock clutch, said President Paul Lee. Contributing to this low effort—and to easier installation—are McLeod’s hydraulic release bearings, “which fit most applications, replacing worn and/or outdated mechanical linkages,” he said.
“We’re selling more clutches for vehicles from the 1960s and 1970s, and installing a new hydraulic clutch in one of these cars can significantly reduce pedal effort,” said Rich Barsamian, national sales manager for Advanced Clutch Technology (ACT) in Lancaster, California. The company also offers a wide range of clutches for GM, Ford and Mopar applications, each rated for torque at the crankshaft.
When installing an aftermarket clutch, Barsamian suggested, “be sure to use the right amount of lube on the input shaft—it is possible to use too much. Be sure parts are free from dirt and oil, and washed in a non-petroleum-based cleaner such as acetone, alcohol or brake cleaner. Be sure to follow the correct torque and tightening sequence when installing the clutch cover—and do not use impact tools.”
So we talked about the 1974 the year of big changes and small engines for the Mustang, now designated as Mustang II. The entire idea was to return to the original roots of the Mustang, small every day car. A far cry from the 300 plus horsepower for the 1969-1973 Mach 1’s. Of course it was a good idea, even though most of us don’t think so then or even now, but take a look at the numbers.The 1974 Mustang II sold over 380,000 units, and not a single V8 in the lot and that was 3 time as many Mustang as were sold in 1973. Additionally, it was Motor Trends car of the year. Now just between you and me, the Motor Trend thing doesn’t do much for me (nor does the J.D. Powers award or any of the others) but it does work for some and judging by the numbers that sold at least 380,000 others.
In 1975 things changes a bit for the Mustang. The infamous 302 returned, making a V8 an option. But how as the possible? What occurred that would bring back the a V8? As mentioned above there were Mustang sold with V8 engines…”In the US“!!!! But our friends south of the border (for those of you geographically challenged, that would be Mexico) were in fact selling Mustangs with V8. Not many knew this was going on but once Hot Rod magazine got wind of it and put it in the front of its June ’74 issue, Ford decided that it need to “pony up” (come on now..that’s clever!!!!) and add the V8 for the 1975 edition of the Mustang II.
Your 1975 Mustang Line Up
The V8 was only available with an automatic transmission and was an option for the Ghia and the Mach I (even though the standard Mach 1 engine was the V6) as well as the other models and topped with a 2 barrel carb, it produced a whopping 122 hp or 140 hp depending on you proved the numbers.
So things were looking in 1975 although the number didn’t get even close to the 1974 model.
1975 Mustang Production Data:
69F Hatchback: 30,038
69R Hatchback – Mach 1: 21,062
60F Coupe: 85,155
60H Coupe – Ghia: 51,320
Total Production: 188,575
The total range of engine looked like this:
1975 Mustang Engines
2.3 L – 140 cid, I-4, 2bbl, 88 hp
2.8 L – 171 cid, V6, 2bbl, 105 hp
5.0 L – 302 cid, V8, 2bbl, 140 hp
Code
Y
Z
F
There were two transmission available a 4 speed manual and 3 speed automatic – but the 4 speed was not available for the 302. That might seem odd but it may have to do with a fitment issue.
Each July the tiny town of Iola, Wis., is invaded by a sea of humanity and old iron. Many in attendance come strictly for the swap meet, which covers about 4,500 spaces.
“Don’t tell me there’s no recovery going on,” said Kurt Kelsey, an Iowa City-based vendor of new-old-stock Pontiac parts. According to Kelsey, his business this year is much better than it has been in a long time. “The phone has been ringing off the hook every day,” he said.
Kelsey’s observation about an up-tick in the market isn’t alone. Positive reports have come from other vendors, parts manufacturers and catalog retailers since late last fall. Despite an unsettled national economy and high unemployment, the old-car parts business seems to be in the midst of a boom.
During a Dynamat seminar at the Hot Rod & Restoration Show in March, company owner Scott Whitaker said one-day shipping of Dynamat automotive insulation products has been impossible to promise lately, because a large increase in orders has outpaced new hiring. “The bump in sales wasn’t expected and caught us off guard,” he said.
In early April, Bob Marx at Marx Parts in Arpin, Wis., came to visit us and he, too, was upbeat about his rising sales. Marx has been growing his inventory of vintage gaskets and rear main seals and is now rebuilding fuel pumps, but he said that new products do not explain all of the growth he is seeing. Like several other industry veterans, Marx pointed to the TV exposure of the Mecum and Barrett-Jackson auctions as a factor that’s helping the hobby grow. “New people are getting involved with old cars,” he said.
“After a winter of inactivity, old cars tend to leak or fail when they are put back on the road,” said Fred Kanter of Kanter Auto Products, who wonders if the business boom might be seasonal. “March, April, May every year, it’s the same thing — spring,” Kanter said. He pointed out that from spring through summer every year, his most popular items are fuel pumps and water pumps. “There’s a lot of factors that affect our business.”
You never know what you’ll see at big swap meets. You might come across a 1958 Edsel Pacer looking for a new home.
Al Suehring of Amherst Junction, Wis., specializes in ring gears and is another vendor who feels that the market is strong. We caught up with him at the Vintage Chevrolet Club of America dinner in Chilton, Wis., and he said that his business from the United States and abroad has been showing noticeable increases lately.
Ray Yager of Classic Industries said the level of growth of reproduction parts sales is “hard to keep up with.” His firm supplies MoPar, 1955-’57 Chevy, Camaro, Firebird, Nova, Impala and Chevy truck parts, and parts sales for these vehicles are moving in a positive direction. Yager thought the company’s 18-month-old MoPar parts catalog may account for some, but not all, of the huge increase in business he’s seeing. At least one vendor who solely deals in Chevrolets is likewise seeing increases in business.
“I’m having a really good year,” said Ron Kellogg of Chevy Tri-Power. “Rather amazing since I’m selling restored multi-carb setups in an era of $5-a-gallon gas prices. I’ve probably sold 25 Tri-Power units — normally a year’s worth — since November 2011.”
Kellogg’s increase proves that car collectors still want high-performance options on their classics.
In addition to new products, increased TV exposure of the hobby and added catalogs, parts suppliers said both the use of the Internet and increased advertising seem to be attracting more customers. Some big companies such as Mid America Motorworks and Eastwood have begun sending daily e-mails to thousands of potential customers. This takes time and money and employees with Internet skills, but their efforts are paying off with increased sales.
Many mom-and-pop operations that can’t afford daily e-marketing efforts are creating websites, Facebook pages, blogs and Twitter accounts to reach the marketplace. Hobby events aimed at professionals — such as the Racing & Performance Expo, the British Motor Trade Association and the SEMA Show — all offer seminars on Internet marketing techniques to these businesses.
As their marketing efforts become more sophisticated, parts sellers are also discovering that they can use print media to drive customers to their websites. Companies that never ran a print ad before are discovering that a clean-looking space ad with the right design and not much text can generate strong client interaction. The right picture of a car can catch the potential customer’s attention and a simple e-mail address or website link is all that’s needed to bring business knocking. A good ad will pay for itself much faster these days.
While an increase in parts sales would suggest that restoration shops and collector car sales are both on the increase, growth in those parts of the hobby isn’t as clear-cut as it is when a part is “checked out” in an online catalog. Collector car dealers such as Colin Comer of Colin’s Classic Auto in Milwaukee and market players such as Joe Bortz are fairly universal in the belief that collector car prices are off 15-20 percent in today’s market. Some restoration shop owners say that they are busier than they’ve ever been, but others say the opposite.
From all of the indications we have seen and all the comments we’ve heard, it appears the old-car parts niche is improving for 2012 and this trend will presumably filter down to other parts of the hobby. The hobby is changing in many ways, and the wise businessmen in it are getting more sophisticated as the market grows.
YOU’VE BEEN WARNED. Now you are going to have to figure out how to explain why there will be Shelby Mustang GT500 in your driveway to your significant other.
Continuing with this series we’ll look at what Pontiac offered up in 1948 as a woody.
In a previous blog entry (Project Pontiac 1949 Silver Streak Delivery Van http://wp.me/pKHNM-Bx) I gave you a look at a Silver Streak owned by a co-worker.
1949 Silver Streak
Well one year earlier Pontiac offered the Silver Streak as a woody.
Side view...love the big fenders.
That is a lot of wood on that woody.
These were low production cars with most being build on the 6 cylinder chassis.
1948 Pontiac 6 cylinder power plant
These were the most commonly used power plants mated with an Automatic Hydra-Matic transmission. It spec’d out as follows:
Cubic Inch Horse power 1bbl carb
239.2
93 (68.45) @ 3400
Carter WA-1 (1)
A very limited were built with 8 cylinders engines. Interesting enough these 8 cylinders were called “Silver Steak”. It boosted the specs:
Cubic Inch Horse power 2 bbl carb
248.9 cu in (4,079 cc)
108.00 (79.5) @ 3700
Carter WCD 630 (2)
Total Pontiac production for that year was only 333,957 cars.
