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Old 04-26-2016, 09:50 AM   #1 (permalink)
JLanzino
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Front End feels like its dancing on takeoff

Good Morning Guys,


Hope all is well its been awhile, as I started opening up the shop, starting to get some vehicles back on the road I noticed that My 91 C1500 6.2L RWD feels like the front end is dancing. As I start accelerating from a stop I notice between 30-40KM the steering wheel feels a little loose and pulls to the right but then goes away after and then smoothens right up.


I had to do all the rear brakes and axle seals, diff service etc... Serviced the front brakes, rotors, pads and calipers all working properly and slide pins moving freely


Im wondering if the tires are starting to go bad possibly?

The Engine Mounts Seem intact, Transmission mount looks ok, as do the U-Joints


Thanks Guys!!

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1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 6.2L C-Code Detroit Diesel, 700R4 Transmission, RWD, 3:08, 1`000`000 Km & Counting All Original My Garage
1991 GMC Sierra 1500 SLE 1/2 Ton Extended Cab, Long Box, 6.2L C-Code Detroit Diesel, 700R4 Transmission, 3:73, 4X4, 326`000KM
1991 GMC Sierra 2500 SL 3/4 Ton Regular Cab, Long Box, 6.2L J-Code Detroit Diesel, 4L80E Transmission, 3:73, 4X4, 570`000KM
1994 GMC Sierra 3500 SLE 1 Ton Crew Cab, Long Box, Dually, 6.5L F-Code Detroit Turbo Diesel, 4L80E Transmission, 4:10, 4X4, 432`000KM, Dailey Driver
1988 GMC Sierra 1500 SL 1/2 Ton Extended Cab, Long Box, 5.0L H Code, TH400 (3L80) Transmission, RWD, 3:42, 306`000Km & Counting
1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 5.7L, 700R4 Transmission, RWD, 3:08, 260`000KM
Proud Member # 992 Of The 3500 Dually Club, # 40 Of The Old SOBs, # 117 The Regular Cab Club, Member Of The ODPC
Proud Fan Of The Montreal Canadiens

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Old 04-26-2016, 10:57 AM   #2 (permalink)
pocale
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Bent wheel, bad or unbalanced tire, shocks, broken spring, front end joints, wheel alignment... that's where i would begin

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Old 04-26-2016, 06:55 PM   #3 (permalink)
happypunch
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I have a similar issue with my ford. Pretty sure it's in the steering system... But got to put it up and have the wife turn the wheel so I can see the play in the parts from underneath.

Do you have any unusual wear on the tires? That's another indication that something is wonky.
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Old 04-26-2016, 11:16 PM   #4 (permalink)
smackzed
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my guess would be shocks
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Old 04-26-2016, 11:36 PM   #5 (permalink)
JLanzino
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I had some spare rims with brand new tires on it and it solved the problem. Im going to drop off the old tire to the local garage to check if a belt gave out or if the rim is bent.

I appreciate all your help guys!! Ill post up some pics of the rear end service I did with in the coming days
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1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 6.2L C-Code Detroit Diesel, 700R4 Transmission, RWD, 3:08, 1`000`000 Km & Counting All Original My Garage
1991 GMC Sierra 1500 SLE 1/2 Ton Extended Cab, Long Box, 6.2L C-Code Detroit Diesel, 700R4 Transmission, 3:73, 4X4, 326`000KM
1991 GMC Sierra 2500 SL 3/4 Ton Regular Cab, Long Box, 6.2L J-Code Detroit Diesel, 4L80E Transmission, 3:73, 4X4, 570`000KM
1994 GMC Sierra 3500 SLE 1 Ton Crew Cab, Long Box, Dually, 6.5L F-Code Detroit Turbo Diesel, 4L80E Transmission, 4:10, 4X4, 432`000KM, Dailey Driver
1988 GMC Sierra 1500 SL 1/2 Ton Extended Cab, Long Box, 5.0L H Code, TH400 (3L80) Transmission, RWD, 3:42, 306`000Km & Counting
1991 GMC Sierra 1500 SL 1/2 Ton Regular Cab, Long Box, 5.7L, 700R4 Transmission, RWD, 3:08, 260`000KM
Proud Member # 992 Of The 3500 Dually Club, # 40 Of The Old SOBs, # 117 The Regular Cab Club, Member Of The ODPC
Proud Fan Of The Montreal Canadiens

Last edited by JLanzino; 04-26-2016 at 11:36 PM.
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