Pinion Bearings - Pirate4x4.Com : 4x4 and Off-Road Forum

red90rover · 06-01-2004, 07:51 AM

I friend developed noise in the front axle (1986 90) following an off road trip. We pulled it apart. The pinion had a ton of slop. The inner bearing's outer race has a rippled wear pattern in the main thrust area. It still has the stock 10 spline diff in there... Surprisingly good condition as he has a 200 hp V8. The oil looked OK other than containing bits of ground up bearing race. As far as we know the diff has been in there since day one...

Anyone seen a pinion bearing just eat itself for no apparent reason??

06-01-2004, 07:51 AM	#1 (permalink)
red90rover Granite Guru Join Date: Jun 2003 Member # 20109 Location: Calgary Posts: 976	Pinion Bearings I friend developed noise in the front axle (1986 90) following an off road trip. We pulled it apart. The pinion had a ton of slop. The inner bearing's outer race has a rippled wear pattern in the main thrust area. It still has the stock 10 spline diff in there... Surprisingly good condition as he has a 200 hp V8. The oil looked OK other than containing bits of ground up bearing race. As far as we know the diff has been in there since day one... Anyone seen a pinion bearing just eat itself for no apparent reason?? __________________ 1991 D90 ex-MOD

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