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09-22-2023, 12:04 AM | #1 |
Registered User
Join Date: Jan 2017
Location: Sandy, UT
Posts: 195
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Squeaking Hydraulic Clutch?
I have a 1986 K5 I swapped an SM465 and a hydraulic clutch into about 5 years ago. I wore the first clutch out with a bunch of off road shenanigans, and replaced it about a year ago. I also did a new fork and ball stud with the new clutch, since the 35+ year old originals were pretty worn.
It was dead silent for a year, and was the best feeling truck clutch I've ever experienced. For about a week, there has been an increasingly loud squeak coming from the bellhousing area when I press the clutch in and the pedal feel has become really coarse and rough, like a bearing filled with sand. I pulled the fork boot out and lubricated the pivot stud and fork as best I can with the transmission in place and it got some quieter and feels some better, but the squeak is still there. Its pretty loud if you press the clutch slowly, and is much quieter if you press it very fast. Has anyone had a similar symptom with a hydraulic clutch in a square body? I can't imagine what else could be squeaking except for the actual pressure plate fingers, and any lube on the pressure plate (even if it was possible to access) seems like a bad idea... My '88 square body has the original ball stud and fork and at least a 10 year old clutch and its dead silent, so I am not sure what is wrong with the new parts in my 86 that would make them suddenly start squeaking after a year of service. I'd really hate to have to change the stupid ball stud every year just to keep it from squeaking. Its at least a day of rolling around on my back on the concrete to get the transfer case, trans, and overdrive splitter out of the truck to get to the clutch and then put all that crap back in...
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1988 "Crane Truck" C30 - 350, SM465, with a 15' knuckle crane - thread 1986 M1009 - 6.2 Diesel, SM465, 2 speed aux trans, NP205 - thread 1979 Corvette - 350 T5 1977 Jimmy - 350, TH400, NP203 1982 Blazer - 350, 700R4, NP208 - Totalled, now a parts truck Scratch built 16' flatbed trailer - thread |
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