Driveshaft measurements

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Feb 29, 2012 | 11:11 PM

onebadd86t/a

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Joined: Jan 2012

Posts: 20

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From: Dayton wy

Car: 86 trans am

Engine: 350

Transmission: 700 r4

Axle/Gears: 3.42 posi 10 bolt

Driveshaft measurements

Does anybody know what the length of the driveshaft for a 86 t/a with a 700r4 trans is ?

Mar 1, 2012 | 07:31 AM

JamesC

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iTrader: (5)

Joined: Aug 1999

Posts: 19,282

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From: Lawrence, KS

Car: Met. Silver 85 IROC/Sold

Engine: 350 HO Deluxe (350ci/330hp)

Transmission: T-5 (Non-WC)

Axle/Gears: Limited Slip 3.23's

Re: Driveshaft measurements

Quote:

Originally Posted by onebadd86t/a

Does anybody know what the length of the driveshaft for a 86 t/a with a 700r4 trans is ?

In answer to your specific question: 41 1/2" from center of the U to center of the U, for both the auto and manual.

JamesC

Last edited by JamesC; Mar 1, 2012 at 06:26 PM.

Mar 1, 2012 | 05:24 PM

AlkyIROC

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Joined: Jul 1999

Posts: 17,274

Likes: 171

From: 51°N 114°W, 3500'

Car: 87 IROC L98

Engine: 588 Alcohol BBC

Transmission: Powerglide

Axle/Gears: Ford 9"/31 spline spool/4.86

Re: Driveshaft measurements

The same length as 84-92 third gen driveshafts with a 700R4. 82-83 may have the 200c which uses a different length.

You won't find a driveshaft in any other car the proper length for a third gen except maybe from a fourth gen. If you want to get one custom built, the measurement is from the center of the u-joint on the diff to the center of the u-joint on the tranny yoke but the tranny yoke must be installed into the transmission then pulled back out 1" before taking the measurement.

Last edited by AlkyIROC; Mar 1, 2012 at 07:59 PM.