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66 mustang- T5 trans swap
#1
I have a 66 convertible 289 which has the factory 3 speed and a 270:1 Equa-loc 8" rear. I also have a 87 T5 5 speed with 75k miles sitting in my shed which was for a different project that got scrapped.

Whats all needed to be done in order to do the swap?
I know that id need to upgrade the rear gear to a 3.25-3.73 ratio to work with the different gearing of the t5, Also I see there are some clutch cables in the aftermarket to allow this bolt up. Anything else? maybe some transmission crossmember/mount modifications??? Shifter mods? Anyone know much about this swap? Thanks!

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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#2
If it's already a manual trans there is no need to go to a cable clutch, only slight modification if any to the stock linkage would be necessary. There are adapter plates to mate the T-5 to the 3 speed. You may need to pick up an aftermarket cross member and have a driveshaft made or shortened. The shifter will come up through the stock hole in the floor with little or no trimming likely.

Jeff T.

Low buck, touring style, '73 Convertible "rolling restoration", 351c, 2v heads with a shave and a haircut, Performer intake, Holley 650(ish), roller rockers, screw in studs, guideplates, stainless valves, Duraspark / Motorsports MSD, T-5 conversion. 1-1/8" front, 3/4" rear swaybars KYB shocks and some home brewed subframe connectors. Future plans; JGC steering box, Cobra brakes and... paint, interior, etc.

When I die I want to die like grandpa, peacefully in my sleep... not screaming, like his passenger.

[Image: 1_12_09_14_10_15_11.png]
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#3
It is a very doable swap and there have been several webpages give a how to and parts list. I had to shorten my drive shaft. I used a late model T5 bell housing and cable clutch from Mustang Steve. Top notch parts from him. He may even have all the parts you'll need. I put in a 3.50 & T-Lok rear gear.

[Image: 386_07_10_13_5_58_42.jpeg]
My Mustangs:
71 M-code Mach 1, Medium Blue/White Sport, 4R70W, 3L50, Factory Ram Air.
72 Q-code Mach 1, Pewter/Black Sport, 4-spd, 3L25.
65 Convertible, Britney Blue/White/White, more modified than original.
05 Convertible, Legend Lime/Tan/Tan, future classic??
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#4
I have the bellhousing and all, might be cheaper to use it instead of the adapter..

Cody--
72 Mach-1 12:1 532 Forged internal Scat stroker, Kaase P51 heads, Comp roller cam, March serpentine conversion, C6 manual VB, 9'' 4:33:1.
66 convertible 289, 82k miles.
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