6 Speed Transmission Swap

Evanes00

New Member
Jan 16, 2019
2
0
1
18
Washington
#1
I am looking to purchase a 1st gen mustang with either a 289 or 302 and put in a 6 speed transmission. I plan on installing aftermarket performance parts so the tranny should be able to handle some power. Any suggestions on what transmission i should use and what i might have to do to make it work? I dont know all the parts I will have to change. Thanks!
 
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RTM

New Member
Jan 28, 2019
1
0
1
52
33914
#2
I'm looking at a 351W stroker build with a 5 speed swap. My understanding is the 6 speed requires you to modify the trans tunnel to make it fit and keep proper driveline angles. The same is pretty much the same with the after market 5 speeds but I think one will fit with out mods to the tunnel. Forgive for not knowing the info off the top of my head.

What I have discovered is the T5 from 87-93 and the 94-95 models can be built and or bought built to handle 600hp and 500 ftlb of torque in a 3000lb car with slicks. This is the route I am currently researching.

As for what needs to be change you can search for kits to do the swap and you will see what the kit has and what is needed to be changed in order to make it work. I really suggest spending some time searching the net for any questions. Nothing wrong with posting here but it will give you a better understanding of what others may be talking about.
 

TT670

Founding Member
Jul 10, 2001
355
6
28
#3
Tremec TKO 5 speed will also mate up to a T-5 bellhousing and fit without transmission tunnel modifications.
 

Evanes00

New Member
Jan 16, 2019
2
0
1
18
Washington
#4
Thanks for the replies! I think I've decided on a much bigger project than proposed. I plan to use the mustang just as a shell and use a 93- 02 camaro with the 5.7 v8 and 6 speed manual. Swap everything over; engine, trans, drive train, e-brake, etc. This way I have a 6 speed transmission without mixing up different parts. What do you guys think? More modern, more powerful, easier to modify, and all in the beautiful body of a 1st gen mustang.
 

TT670

Founding Member
Jul 10, 2001
355
6
28
#5
I think your idea is a great way to ruin a vintage mustang and could be classified as criminal behavior.