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So where did you end up on this one? My '91 has been doing the same thing for years. I had it converted to R134 years ago by a GM dealer while trying to get the issue fixed but no luck - and then I moved out of state so I couldn't continue the process with that dealer. It's a Sunday-driver so no...

Turns out my clutch, pressure plate, and flywheel were simply worn out, and that specific effect, slipping at higher RPM's (as opposed to slipping off the line), is typically the first to manifest itself. I ended up replacing my flywheel, clutch disk, pressure plate, throw out bearing, clutch...

Discontinuation I had the same experience as Chris on the clutch hose for my '91 ZF. Everybody said it was discontinued but when I called my local Chevy dealer they were able to order from the regional warehouse (took a day). For that part, the price wasn't any more at the dealer than it was at...

Yeah, I can see that. What do you think is the most probable cause of the bind (damage aside, I don't believe there is any)? Lack of lube? I'm trying to visualize if there's any way to get some lube to that joint without removing the transmission. Let me know if you have any ideas.

Just a single, slight pop at the bottom of the range of travel, and typically only if my foot/the pedal is moving towards the floor at a pretty good rate (i.e., if I'm depressing the pedal really slowly, it usually won't pop). And as far as I can tell, there's really no audible noise associated...

What about the throw out bearing? Not lubed properly where the fork contacts it? The bearing is brand new.

I replaced the clutch and all associated accessories (dual-mass flywheel, throw-out bearing, pressure plate, clutch slave, master cyliner, etc.) a number of months ago and I'm getting this single tick feel/noise at the very bottom of my clutch pedal travel. The new clutch works great but the...

I replaced the original clutch and flywheel on my '91 this May (76,000 miles). After removing the flywheel, putting it on the bench, and laying a straight edge across it, I found it to be too dished out in the center to risk re-using (over 1/8th of an inch difference between the center and the...

A few months ago I replaced the clutch in my '91 and all associated components (new dual mass flywheel, new clutch plate, pressure plate, throwout bearing, clutch slave, clutch master cylinder, braided line between the master cylinder and slave, etc.) and everything is working great except I'm...

Standard tools (mostly metric), time, patience, and a GM service manual. I just replaced the clutch and flywheel (and slave cylinder, master cylinder, and hydraulic line) on my '91 in my garage using standard tools, many jack stands, and a couple of jacks (including the rental of a transmission...

Should I use new flywheel bolts for the installation of a new flywheel and clutch or is it safe to use the original flywheel bolts (76,000 miles on a '91)? I've seen "new bolts" mentioned in a couple locations but I haven't explicitly read that it's necessary to replace them and the service...

Thanks for the advice guys. I ended up buying a new flywheel. The zfdoc said I could probably get away with scuffing the flywheel, based on the pictures, but he recommended I first check it with a staight edge for flatness. So I removed it from the car, put it on the bench, laid a straight edge...

I just ran across the following link on the Corvette Forum website. Does anybody have any experience with this outfit? http://www.dualmassinc.com/

What do you guys think? Does this flywheel need to be replaced? Despite the colors, it's smooth except for the noticeable 1" ring aroung the inside of the contact area, which is definitely a little rough to the touch. It's the original flywheel and this car's first clutch change (76,000...

TriTown, Thank you very much for the offer. I plan to check a couple auto parts stores on Monday. If I don't have any luck, I'll let you know. Ryan

Anybody know where I can get a clutch/pressure plate alignment tool for the re-installation of my clutch ('91)? The OEM clutch and pressure plate assembly that I got from the local GM dealer didn't come with one. I expected it to include one of those plastic, splined, alignment tools. When I...

Removing the "Special Ball Stud Locking Screw" that holds the '91 Clutch Fork??? Can anybody recommend a tool for loosening/removing the odd fastener that holds the clutch fork pivot ball inside the clutch housing? I was able to remove the outer portion of that fastener with an allen wrech but...

PowerEffects I tried a set of Borla's on my '91 but (a) I never got them to fit right (I couldn't get the tips parallel to the rear fascia) and (b) after a few years, the resonance just got to be too much. They sounded great when I nailed it, but the resonance on the highway was too much until...

Does anybody know of a set of clutch replacement instructions that are more detailed than those found in the GM service manual? If so, how can I get my hands on them. Also, can anybody comment on the differences, if any, between the clutch replacement in a '92 and a '91 (LT1 vs. L98). I'm...

I'm looking for some help in diagnosing an apparent clutch-slippage problem on my '91, L98 (ZF 6) - and coming up with a plan to fix it. FYI, the car/clutch has 76,000 miles on it, 75% of which is interstate miles. I seem to be getting a bit of clutch slippage when I punch it at 35-40 mph...