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T-3650 ~ T-56 swap with complete instructions

Old 03-11-2010, 01:03 PM
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Hrm... Something to look into in the future I guess. Pretty satisfied with my tranny as of yet. But if ever I need a new one for any reason...6 gears would be cool haha! Thanks bud!
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Old 05-09-2010, 02:19 PM
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same thing that i posted on youkairyu32's trans. swap thread. Now i have a question about my car. its not a mustang but has pretty much the same setup from the engine to the rear diff. Its a 1997 mercury grand marquis. i dont know about the ECM though if its the same or not. was planning on doing the swap in 2 years and wante to know if i could before i got all the parts. Dont know what model of transmission it is but i want to put in the t-56. The pedal cluster i am very unsure about. either pm me or reply. Thanks!
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Old 05-11-2010, 08:37 AM
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The gear ratio is a subjective decision and will have to make a decision. I chose my #1260 due to the even "steps" between ALL the gears rather than the HUGE differential between 1st~2nd and 4th~5th. I would ask you to contact Bruce @ Moddern Driveline and ask about such a swap. I don't know if he can help you, but he will know much more than I.

As for pedal fitment and ECM changes... I have absolutely no idea.

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Old 07-15-2016, 01:13 PM
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I want to make this swap as well. Thanks for the info
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Old 02-07-2018, 12:36 AM
Join Date: Feb 2018
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Originally Posted by Jazzer The Cat View Post
Had a couple road trips now and can only say the following...

Anyone considering this swap, is well advised to do so

1st~2nd is nice and smooth now, and less likely to get a herky-jerky as the ratio is much closer. That's not all folks, just check what's behind door #2... The loss of the 4th~5th gear gap I am now able to cruise at 55 mph with no need to choose between 2600 rpm 4th or 1600 rpm 5th With the new T-56, she now runs at 2200 rpm in 5th so have some power for those all those little hills in Marin Co. I always hated having to drive a little faster than I would like JUST to retain some semblance of HP in 5th gear.

This is a spectacular upgrade and recommend it to anyone with the means to do so

Hey man. I'm thinking about doing this same swap into my 02 GT could u tell me wat all is needed as far as parts and modification. I know I'm going to need to change shifter, clutch, driveshaft, and crossmember but is there anything else as far as flywheel and what modification do I have to do to my clutch cable if any?
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