LR 4-pin diff. for D90,D1,RRC $200 shipped - Defender Source
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Old September 11th, 2013, 05:15 PM
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David Crall
1996 Discovery
Join Date: Feb 2009
Location: Pittsfield, MA
Posts: 75
LR 4-pin diff. for D90,D1,RRC $200 shipped

LR 4-pin differential center for sale. This is an excellent differential out of the rear of a 4.6 RR. It was machined to work 100% properly in D90,D1, and RRC differentials. Basically the ring gear mounting flange diameter was cut down 1/2", the webbing was cut down some, and one bearing journal moved deeper into the center by about 1/4". All of this done to match the regular long-nose differential center specs. The older LR 4-pins are hard to come by, so this is a common modification in Britain. All modification done by a good machine shop. The bearing journal modification was measured and cut by computer managed equipment to be perfect. Machine work cost $150 and the diff. cost me $200. I took the differential apart after the machine work to check for metal filings and cleaned everything. The gears and shafts were 100% perfect. I properly re-torqued the case bolts with red thread locker too. It's a very strong open diff.

Second picture shows the 4-pin on the right.

New Timken bearings included.

$200 shipped.
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