I'm with OldColt on this ... A lot of shops dont have the tooling to pull a timken bearing so they cut the bearings off to change shims ...I've had to pull bearing on a diff to change diff settings two times ..five times ... ten times to get the set up right ... I said "right" not close enough ..Close enough means you have a noise from the rear end off gas ...
I have a gig where two to three times a year I mail a container of motorcycle parts and LSD diff's from Japanese cars to England ...If I can I swap (lower) the gears in the diff's ... To do this you have to pull down two diff's to do it ..(Lower gears for a Japanese sports car can be found in the front axle of a 4x4 truck ..)... I have a box full of Mitsu truck/Starion bearings all good and I would install in a diff right now ..There just fine ... One D50 3.90 diff I plundered for the gears for a Starion diff had 370K in miles and the bearings are fine ..
This guy wants new bearing and has not even opened up your diff's ...?....... .. So how does he know there bad ...?
I've done enough diff's to have buckets full of diff shim's ...Not many can make that statement ...If the shop does not have buckets full of shim's and a lathe then there just playing at diff set up ... The worst thing a shop can do is try to dive into a job they dont know really how to do for the money ....Gear work is voodoo a black art the hardest thing on a car to do ...You drive a rear end around the block set up wrong and you will "never" get the noise out of it do to putting an edge on the gears...Used gears are way harder to set up then new gears by the way ...
The best way to fine a good repair shop is go door to door to all the auto parts houses and ask "who can set up a diff right " ... The Napa ..AutoZone ..Carquest and so on know who is good and who is not ...
This site and all original materials contained herein are Copyright 1999 - 2013 by OutdoorWire, Inc. -- All Rights Reserved.
You may link freely to this site, but no further use is allowed without the express written permission of the owner of this material.
All corporate trademarks are the property of their respective owners.
This publication and OutdoorWire, Inc. assume no liability for your use of the material contained within this site.
OutdoorWire, 4x4Wire, SUVWire, JeepWire, MUIRNet-News, and 4x4Voice are all trademarks and publications of OutdoorWire, Inc.