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#1 |
Registered User
Join Date: Apr 2014
Location: Baldwin County, Alabama
Posts: 163
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When driving, get a squeak as the driveshaft rotates
I have a 1988 700r4 that I bought recently from a salvage yard. I replaced all seals, filter, installed the Transgo SK-700JR kit. Seems to shift and work great but I have this squeak. It's a 2-piece driveshaft (3 u-joints). I replaced the rear u-joint. Still squeaking. So I got the burn on jackstands, got underneath, shifted to N, and rotated the driveshaft by hand. It's definitely coming from the forward area. It could be the front u-joint but it really sounds like it's coming from the transmission tailshaft area. When I was resealing the trans I had the tailshaft housing off because I replaced its seal as well, and inspected the shaft, bushing, and speedo setup.
Still looking for the source of my sqeak.
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#2 |
Registered User
Join Date: Dec 2012
Location: Temple City
Posts: 3,587
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Re: When driving, get a squeak as the driveshaft rotates
Did you oil the shaft before you slide it in?
Also the center support bushings can squeak. |
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#3 |
Moderator
![]() Join Date: Jun 2017
Location: Cherryville, NC
Posts: 2,192
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Re: When driving, get a squeak as the driveshaft rotates
More than likely its a uni joint thats dried out....if they have grease nipples, give each one a shot of grease until it comes out of the ross seals...
There is little chance the issue is inside the trans... I would also make sure the center bearing is not partially seized and noisy..... ![]() ![]() ![]()
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#4 | |
Registered User
Join Date: Apr 2014
Location: Baldwin County, Alabama
Posts: 163
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Re: When driving, get a squeak as the driveshaft rotates
Quote:
I did lube the seal and the driveshaft before installing. Hard to type that without laughing. ![]() I should have lubed with trans fluid but I actually used petrolium jelly (vasoline) ![]()
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#5 | |
Registered User
Join Date: Apr 2014
Location: Baldwin County, Alabama
Posts: 163
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Re: When driving, get a squeak as the driveshaft rotates
Quote:
The center u-joint and front u-joint do not have a grease nipple. I should have replaced them when I had the d.s. out but didn't. Now I'm trying to avoid removal again. Also, when doing all my suspension work I replaced the center support bearing with Inland Empire Driveline high impact polyeurothane unit. https://www.iedls.com/Our_Difference When I unbolt it and lift up the d.S. it spins very freely, without drag, resistance, or noise.
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Tags |
driveshaft, squeak, transmission, u-joint |
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