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Old 01-20-2010, 02:14 PM   #1
FMBL
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Join Date: Jan 2010
Location: NRH, TX
Posts: 198
87 - 89 Rearend Swap

I found an 87 truck rearend with 4:10 posi that i want to try and replace my 3:08 with.

Would an 87 rearend be a direct swap to an 89? Both trucks are 1/2 ton 5 lug.

If so how do you correct the speedo on an 89 700r4. To my knowledge it is electronic without the old style speedo gears.
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