![]() |
|
![]() |
#1 | |
Bloo
Join Date: Feb 2001
Location: Barren County Kentucky
Posts: 6,285
|
strange shimmy
i know this is the wrong board but im gonna try to fix this tomarow so i wanted to post it here where it'd be seen.
drove my dads 94 k3500 dually on a long trip... had a major shaking / vibration in the rear drive train... doin good to hold it steady at 55, sometimes 65... This morning we found the rear outer tire had a busted valve stem - had the tire fixed at a wal mart-- and got back on the interstat, and it is still doing the same thing. its not AS bad, but still major vibration at 65 and up - i checked the carrier bearing and it has alot of play in it. would that cause a shake like that? it doesnt show up untill at least 55, and isnt bad untill 65. how long would it take to fix the carrier bearing? Thanks~
__________________
ASE Master Certified-GM Trained-Mechanic 1968 Chevy C30 157" WB Wrecker 1969 Chevy CST/10 SWB 1971 Chevy Custom/10 (first truck) 350, NV3500 5 speed 1971 Chevy K20 Custom Camper 4x4 350 TBI, SM465/NP205 1974 Chevy Custom Deluxe/10 1979 Chevy Custom Deluxe K10 farm truck beater 1989 Chevy K2500 Quote:
![]() Last edited by Blue_71; 05-23-2004 at 08:28 PM. |
|
![]() |
![]() |
![]() |
#2 |
Registered User
Join Date: Jul 2003
Location: north of Phx AZ about 30 miles
Posts: 698
|
Seems to me those had composite drive shafts that were prone to going bad. They go bad at the union between the yoke and the shaft I think.
__________________
Andy,Phx AZ '67 C-10 (Ahhh, done at last. Well there is that disk front end I want to put in and...) "23 C-Cab-sold '48 Ford 8N tractor(still working) '67 Scout(Now on the road) '70 MG B.-sold |
![]() |
![]() |
![]() |
#3 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,269
|
Josh, check the composit to metal connection at each yoke on the rear drive shaft by pulling on the shaft real good----any play is not good. If the carrier bearing is letting the driveshaft slop around---that could also be the problem. I usually have the carrier bearing changed at a parts store that can do that as they usually have to be pressed on/off and I didn't have a large/long enough press to do that.
At speed --55-65 if you shift into neutral, does the noise go away? Can you jack the truck up SAFELY at the rear axel and then run the sucker----you can sometimes see/hear what is going wrong---bad tire, bad axel bearing, bent drive shaft, spring mount, shock mount, etc. |
![]() |
![]() |
![]() |
#4 |
Binder Rep
Join Date: Jan 2001
Location: Salcha, AK
Posts: 1,506
|
Good be as simple as a bad u-joint... that carrier bearing could be it too though. Either way, if the carrier bearing is bad, you need to replace it... you can do some carrier bearings at home, but I don't know about that one.
|
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|