Modified XJ Cherokee Tech XJ (84-01)
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8.8 installed, new sounds abound

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Old May 10, 2013 | 03:11 PM
  #1  
Parsnip's Avatar
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From: Roanoke, VA
Year: 1990
Model: Cherokee
Engine: 4.0
Default 8.8 installed, new sounds abound

Hey guys,
A few days back my buddy and I did an 8.8 swap, but when.I'm driving now I'm getting an odd bumpy feeling from the rear. It almost feels like a warped caliper when you hit the brake, except it happens while no brakes are applied. When I do hit the brakes though, the motion subsides a noticeable amount but not entirely. Could it be bad bearings?
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Old May 10, 2013 | 03:19 PM
  #2  
Lowrange2's Avatar
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Joined: May 2008
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From: +34° 25' 35.67", -81° 21' 12.04"
Year: 1993
Engine: 4.0
Default

Originally Posted by Parsnip
Hey guys,
A few days back my buddy and I did an 8.8 swap, but when.I'm driving now I'm getting an odd bumpy feeling from the rear. It almost feels like a warped caliper when you hit the brake, except it happens while no brakes are applied. When I do hit the brakes though, the motion subsides a noticeable amount but not entirely. Could it be bad bearings?
I'd lean more towards a u-joint or drive shafts. Did you use the original driveshaft? Did you use the same joints?

When you put the joint in 8.8 drive shaft flange adapter did it seat correctly?

Could be worth turning the rotors and inspecting bearings.
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Old May 10, 2013 | 03:34 PM
  #3  
Parsnip's Avatar
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Joined: Dec 2011
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From: Roanoke, VA
Year: 1990
Model: Cherokee
Engine: 4.0
Default

Originally Posted by lowrange2

I'd lean more towards a u-joint or drive shafts. Did you use the original driveshaft? Did you use the same joints?

When you put the joint in 8.8 drive shaft flange adapter did it seat correctly?

Could be worth turning the rotors and inspecting bearings.
The driveshaft to flange and flange adapter are new and seated fully, and I did use the same DS but it will be gone soon once I do a sye on it. It feels almost entirely like it comes from the rear left wheel though.
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