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Nv4500 clutch
- Thread starter Twyoung7
- Start date
Depends on how much you want to spend. I put a Centerforce clutch in with my 4500 behind my 8.1.
You need to get any brand clutch based on the year of your trans though. '96 and later 4500's use an integral slave/throw out bearing and therefore use a different clutch than the '95 and earlier setups with the external slave and normal throw out bearing.
You need to get any brand clutch based on the year of your trans though. '96 and later 4500's use an integral slave/throw out bearing and therefore use a different clutch than the '95 and earlier setups with the external slave and normal throw out bearing.
What did you do for a flywheel?
Just an FYI.
Ceramic clutches usually GRAB and go. But can be real hard to feather it and do slow technical stuff because of it. Like backing up or trying to slowly crawl around an obstacle. Kinda like it's ON or OFF.
You can get used to it. But wanted to point it out.
Ceramic clutches usually GRAB and go. But can be real hard to feather it and do slow technical stuff because of it. Like backing up or trying to slowly crawl around an obstacle. Kinda like it's ON or OFF.
You can get used to it. But wanted to point it out.
https://ck5.com/forums/threads/nv4500-clutch.341893/unread This is my flywheel
I’m mainly going to be doing street driving and maybe off road every now and than what do you think would be best
Rockauto lists the same clutch kits for 94 and 96 NV4500 transmissions. The TOB is different, but the disc itself doesn't care what's behind it. The important part is that your TOB works with your flywheel / pressure plate combination (should be easy if you stick with GM parts), and that your TOB matches your throwout arm if you have one (this is the part I messed up during my NV4500 swap).
A bunch of seemingly unrelated GM applications used compatible parts. I have stock squarebody clutch hydraulics connected to a Pontiac T56 slave cylinder, bolted into an LS-era NV3500, driven by a stock diesel flywheel and clutch set. All stock parts aside from one hydraulic adapter.
Yes, it's possible to screw this up, but the parts catalog is more forgiving than you'd think. GM reuses components quite regularly.
Yes, it's possible to screw this up, but the parts catalog is more forgiving than you'd think. GM reuses components quite regularly.
They are NOT the same clutches '95 and earlier to '96 and later. The integrated throw out bearing has a much different installed height and requires a pressure plate with the fingers at a different height to match.
Centerforce shows two different part numbers, kcft240916 for the early and df097310 for the later.
Luk shows 3 for the early, 04-163, 04-122, 04-121. Late numbers are 04-154, 04-170.
On rock auto they show an AMS kit for -
'94's as 1617, '97 is 1522
GM's own parts catalog shows different numbers for the early and late versions.
The discs might be the same throughout, although I didn't confirm. But most certainly the pressure plate is different.
If they were the same why the difference in part numbers from multiple clutch manufacturers?
Your statement to use the clutch that matches your tb arrangement is correct but your earlier statement that the early and late are compatible is wrong.
If you have a '96 or later you need to go with the clutch for that application. If it's '95 and older you need to go with one for that application. Don't mix.
Had I been able to use the early setup with my later trans I would have darn well used it. I have a fresh clutch with under 5,000 miles I pulled out of my '75 we scrapped. My cheap ass wouldn't have gone for a new clutch if I didn't have too. But every ounce of research I did proved they were different.
Yes there's a lot of compatibility as I'm using the '98 slave mated up to a stock squarebody clutch master cylinder (with Earl's adapters and hose), but certain items need to be for the application they came from.
I checked again and found that you are right. Not sure how I botched that the first time I checked, but you are right. I misread the catalog.
Sincere apologies for propagating bad information.
Do you have the 96-up NV4500 with internal slave cylinder, or the 95-down NV4500 with the external slave cylinder?
The pressure plate needs to match the TOB and the arm (if present). This is what I screwed up on my CUCV build. I had the wrong combination of arm offset & bearing. Pretty sure it was an older-style thin bearing (mechanical clutch) with a newer-style flat arm (hydraulic clutch uses less offset than older arms). The net result was the pressure plate didn't contact the bearing until the pedal was halfway to the floor. I eliminated the problem by installing a longer rod on the slave cylinder. But if you're using an internal slave, you won't have this option. The parts just need to match.
If I was to do another swap I wouldn't fool around with any of the earlier external slave stuff. Either way with stock GM parts or the Advance Adapter bell and slave mount. The '96 and later integrated slave/throwout bearing is almost foolproof. Two adapters and a 36" hose from Earl's and the stock squarebody master cylinder and it's done. No fooling with adjustments, no issues with parts mismatch. Feels like a factory setup.
