Maryland Cherokee Club
CF Veteran
Joined: Dec 2011
Posts: 1,140
Likes: 0
From: Near the airport by the water
Year: 1999
Model: Cherokee
Engine: 4.0
Anyone know how to determine if a pinion bearing needs replaced? Ive got a grinding noise coming from my front diff under deceleration.
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
Anyone know how to determine if a pinion bearing needs replaced? Ive got a grinding noise coming from my front diff under deceleration.
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
CF Veteran
Joined: Nov 2011
Posts: 2,752
Likes: 0
From: Nashville
Year: 2001
Model: Cherokee
Engine: 4.0
Price: $200
Private or Vendor Listing: Private Listing
Part fits (you may select multiples): Cherokee XJ (84-96), Cherokee XJ (96-01), Other Jeep (Specify in Comments)
Location (State/Prov): VA
Item Condition: Used
For Sale a 5 wheel set of Moabs from a 2012 JK. Wheels are in great condition. Bolt Pattern 5x5 $200/obo Located in Centreville, VA.
Private or Vendor Listing: Private Listing
Part fits (you may select multiples): Cherokee XJ (84-96), Cherokee XJ (96-01), Other Jeep (Specify in Comments)
Location (State/Prov): VA
Item Condition: Used
For Sale a 5 wheel set of Moabs from a 2012 JK. Wheels are in great condition. Bolt Pattern 5x5 $200/obo Located in Centreville, VA.
CF Veteran
Joined: Nov 2011
Posts: 2,752
Likes: 0
From: Nashville
Year: 2001
Model: Cherokee
Engine: 4.0
Anyone know how to determine if a pinion bearing needs replaced? Ive got a grinding noise coming from my front diff under deceleration.
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
Pulled front DS to rule out driveshaft. Hubs and ujoints look good. Vibes start at 55mph and stop at 10mph. Sounds like I'm driving with mud terrains and its getting louder every time I drive it.
I'm putting it on a lift at Fort Meade tomorrow to check it out and would like to figure out how to troubleshoot it.
If its the inner/outer pinion bearing does anyone have experience replacing bearing and setting up gears in a HP 30 off a 99?
Last edited by fritzthekatt; Apr 26, 2013 at 03:14 PM.
CF Veteran
Joined: Dec 2011
Posts: 1,140
Likes: 0
From: Near the airport by the water
Year: 1999
Model: Cherokee
Engine: 4.0
☠ CF Sheriff ☠

Joined: Nov 2009
Posts: 15,197
Likes: 18
From: Aberdeen, MD
Year: 1995
Model: Cherokee
Engine: 4.0L HO I-6, 703 Injectors, Brown Dog Super Engine Mounts
Replacing that bearing requires you to pull the cover, shafts, spiders, carrier, and pinion. The bearings are pressed onto the pinion itself. Crush washer will need to be replaced as well.
They shouldn't need to fully re-"set up" the gears per say, just re-crush the new crush washer until the proper rotational torque is achieved. Regardless though it needs to be done by a shop that knows how to set up gears.
CF Veteran
Joined: Dec 2011
Posts: 1,140
Likes: 0
From: Near the airport by the water
Year: 1999
Model: Cherokee
Engine: 4.0
Headed to Capital Raceway in Crofton tonight. Anyone interested in meeting up? Gonna go drink beers and bet dollar bills on each race that looks like the cars should be faster than 11.99 in the 1/4.
CF Veteran
Joined: Dec 2012
Posts: 1,761
Likes: 0
From: Bowie,MD
Year: 1992
Model: Cherokee
Engine: 4.0
Senior Member
Joined: Sep 2012
Posts: 593
Likes: 1
From: Bel Air, MD
Year: 1994 and 1996
Model: Cherokee
Senior Member
Joined: Aug 2012
Posts: 732
Likes: 0
From: Westminster, MD
Year: 1988
Model: Cherokee
Engine: 4.0
Hey y'all need to clean out some extra parts.
Have:
Stock cat welded to dynomax super turbo $75
Moog upper ball joints all years $75/pair
Bridgestone dueler a/t 30's 1/4 tread $60/pair
Headlight bezel and grill $30
Door lock actuator $30
Rear hatch cover $20
Rear taillights pre 97 $20/pair
Have:
Stock cat welded to dynomax super turbo $75
Moog upper ball joints all years $75/pair
Bridgestone dueler a/t 30's 1/4 tread $60/pair
Headlight bezel and grill $30
Door lock actuator $30
Rear hatch cover $20
Rear taillights pre 97 $20/pair
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
I love reliable. They buy all my beer!
Lol. Get used to it. Its how all the kids these days type.
May 25th swal meet!
Hey y'all need to clean out some extra parts.
Have:
Stock cat welded to dynomax super turbo $75
Moog upper ball joints all years $75/pair
Bridgestone dueler a/t 30's 1/4 tread $60/pair
Headlight bezel and grill $30
Door lock actuator $30
Rear hatch cover $20
Rear taillights pre 97 $20/pair
Have:
Stock cat welded to dynomax super turbo $75
Moog upper ball joints all years $75/pair
Bridgestone dueler a/t 30's 1/4 tread $60/pair
Headlight bezel and grill $30
Door lock actuator $30
Rear hatch cover $20
Rear taillights pre 97 $20/pair
CF Veteran
Joined: Dec 2012
Posts: 1,761
Likes: 0
From: Bowie,MD
Year: 1992
Model: Cherokee
Engine: 4.0
Senior Member
Joined: Aug 2012
Posts: 732
Likes: 0
From: Westminster, MD
Year: 1988
Model: Cherokee
Engine: 4.0






