size of the rearend

by **lv383** [OP] » September 16th 2009, 4:30am

i have a 87 astro mark 3 conversion. i'm redoing everything myself except for the trans, driveline, and rearend. i wanted to know does anyboby know what size rearend comes in the 87, 7.5 or 8.5. i'm going with a 373 gear positive trac along with stage 3 trans behind a tpi 383 stroker.it's going to be show and go. thx

Website · by **Mr_Bowtie** » September 16th 2009, 4:33am

Welcome to the board! 7.5" rearend.......we wish they had a 8.5" rearend...

Got any pics of your Van or build?

by **lv383** [OP] » September 17th 2009, 3:20am

thx for the info pics will be coming soon :chevy:

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size of the rearend

size of the rearend

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Re: size of the rearend

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A differential is a device employing gears capable of transmitting torque and rotation through shafts. Essentially the differential allows each of the driving wheels to rotate at different speeds in the rear axle.
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