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Author Topic:   changing motors
speeddemon
Journeyman

Posts: 1
From: middleburg,fl good ol usa
Registered: Jul 2004

posted 07-06-2004 09:28 AM     Click Here to See the Profile for speeddemon   Click Here to Email speeddemon     Edit/Delete Message   Reply w/Quote
i have a four cylinder fox style mustang and i have a 302 eight cylinder i want to drop in it do i need a new transmission and rear end or can i use the same ones

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TurboGT
Gearhead

Posts: 181
From: Hutchinson, Kansas
Registered: Mar 2002

posted 07-06-2004 10:41 AM     Click Here to See the Profile for TurboGT   Click Here to Email TurboGT     Edit/Delete Message   Reply w/Quote
Stick shift or automatic? What year is the car?

Generally speaking, the rearend (7.5") will hold up behind a stock 302/5.0 if you're nice to it. High RPM sticky tire launches will eventually do it in, though. An 8.8 would be preferable, though.

The same applies to the 4 cylinder T-5 5-speed transmissions, although they require a special pilot bushing to install the 4 cylinder T-5 behind the V8. Okay for a "driver" 302/5.0 if taken care of, but not the hot ticket for performance use.

Most of the other 4 cylinder transmissions (4-speed, C-3, AOD) would either be too weak, and/or require a fabricated adapter.

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Mark Walton
'83 Mustang NHRA Stocker (under construction - track debut 2003...uh...'04)
'69 "off brand" NHRA SS/EA

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Velocity0
Gearhead

Posts: 330
From: Burnaby, BC Canada
Registered: Apr 2001

posted 07-06-2004 10:07 PM     Click Here to See the Profile for Velocity0   Click Here to Email Velocity0     Edit/Delete Message   Reply w/Quote
Where are you going to get that special pilot bearing from?

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TurboGT
Gearhead

Posts: 181
From: Hutchinson, Kansas
Registered: Mar 2002

posted 07-07-2004 09:37 AM     Click Here to See the Profile for TurboGT   Click Here to Email TurboGT     Edit/Delete Message   Reply w/Quote
I believe it's a Chevy S-10 bearing, but don't have the number.

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Mark Walton
'83 Mustang NHRA Stocker (under construction - track debut 2003...uh...'04)
'69 "off brand" NHRA SS/EA

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