Rearend help

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Sep 6, 2012 | 08:01 PM

#16

JuansFordy

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Joined: Sep 2012

Posts: 6

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From: Cohoes NY

To look at the axles there identical the mounting is the same they look identical but obviously different gear ratio and ones 4" longer then the other. Im gonna pull the diff cover and go from there

Sep 6, 2012 | 08:03 PM

#17

danr1

Lead Driver

Joined: Aug 2006

Posts: 5,670

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From: Sand Lake, MI

Well guess he'll have to look but I know my 87 (single rear) has the VSS in the rear dif, think it be fairly safe to assume his does too?

Sounds to me like a bolt in affair, no mods or changes needed to anything including getting the speedo working. And will need the speedo, doesn't need to see it but needs the POSM working. And can correct for tire size if needed, ability to do so hasn't been used up already. Enough correction make up for any slight differences in tone ring same time?

Sep 6, 2012 | 08:32 PM

#18

Opossum

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Joined: Oct 2008

Posts: 3,026

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From: Renton, WA

Put an 8.8 in it there the best, most of all the 8 lug version. They'll handle anything, I read that here on this forum so we know it's true.

Sep 7, 2012 | 07:34 AM

#19

tjc transport

i ain't rite

Joined: Mar 2005

Posts: 65,595

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From: Marlboro Mental Hospital.

Quote:

Originally Posted by rstrong

point taken but why is there 4 inches if difference in the overall measurement? They Made Chassis cab SRW's in 87-97. so the wider measurement is an error? Im just not understanding the 4 inch difference. as far as the true dually vs Chassis cab axle width, having owned both I know about. I was meaning maybe there is a difference in axles between a regular 250 vs a Chassis cab srw 350

no such animal. all cab chassis trucks were dual wheel.

if it was single rear wheel, it was a pickup without a bed.
dual rear wheel rear axle was 4 inches wider than a single rear wheel axle to compensate for the dual wheels.