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6 speed to auto swap??

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Old 06-01-2007, 07:00 AM   #1
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Default 6 speed to auto swap??

I have a 2000ss with the mods in my sig. I was curious as to what is needed and involved to swap in a th400 in place of the t-56. Do I need a new driveshaft?? Torque arm?? bellhousing?? Etc.. Any info is helpfull. Thanks.
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2000 SS: 236/240 cam, full bolt-ons, M6, 9inch, 4.11s, 125 wet shot, 493rwhp/570tq= 10.97@127.7 1.58 60'
Th350RMVB, FTI 4400= 480rwhp/450tq. So far 10.84@ 126. Sold. Gone but not Forgotten.

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Old 06-01-2007, 11:02 AM   #2
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Yes, yes, yes... and yes again.

there's a sticky - you can also do a search and find tons of info.
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Old 06-01-2007, 11:10 AM   #3
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parts you'll need - lokar dipstick, Yank or BMR trans cross-member, new driveshaft... if you get a cross-member with an integrated torque arm mount, then you can keep the stock style trans mounted torque arm. if not, then you'll need a chassis mounted torque arm. there's different flexplates you need...

the bellhousing on a chevy TH400 will bolt right up - however, there are only like, 4-5 bolts that hold the trans to the motor and it's on the top half of the bellhousing. i don't think anyone has had problems - but Yank makes a REALLY nice bellhousing conversion so that you have a bellhousing w/ all the bolts.

you will lose your spedometer... there are factory sensors you can get to work w/ the TH400.

you'll need a shifter for it... you'll need some sort of bracket to bolt the shifter to the floor.... and lots
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Last edited by Bryan @ Speed Inc.; 06-01-2007 at 12:32 PM..
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Old 06-01-2007, 11:10 AM
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