Author Topic: 3 speed on the column to 4 on the floor swap  (Read 5493 times)

Offline xbanone

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3 speed on the column to 4 on the floor swap
« on: September 25, 2007, 06:14:07 pm »
hello all,

I would like to change my '76 4x4 GMC from a 3 on the tree to a 4speed, I have a 4 speed lined up but want to know if my t-case is interchangeable between the two. It is a New Process part time cast iron case (assuming a NP205, it has no tag). the truck was originally a I6 if that matters. TIA

Brady 8)
« Last Edit: November 18, 2007, 03:09:39 pm by xbanone »

Offline Fordeatinz71

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Re: 3 speed on the column to 4 on the floor swap
« Reply #1 on: November 10, 2007, 08:25:40 pm »
hey man, i know this is an old post but i wanted to respond anyhow...YES, your t-case should bolt up just fine...the NP205 only has one kind of mating flange that i'm aware of
1991 Chevy Silverado K1500 ECSB, 350, 700R4 w/shift kit, 3.42's, exhaust work...
1983 GMC Sierra K1500 SWB-sold :(

Offline xbanone

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Re: 3 speed on the column to 4 on the floor swap
« Reply #2 on: November 18, 2007, 03:08:06 pm »
thanks for the reply, i thought this was a lost post, this is an extremely rare  truck one of two 4x4 three speed trucks i have seen (both I6's). mine is a v8 swap and soon to be adding a SM465.
thanks
Brady

Offline Fordeatinz71

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Re: 3 speed on the column to 4 on the floor swap
« Reply #3 on: November 18, 2007, 07:18:45 pm »
no problem.  it's a shame you can't figure out just how many were produced like that...if it really is rare i'd restore that sucker to 100% original status...6 cyl and all...
1991 Chevy Silverado K1500 ECSB, 350, 700R4 w/shift kit, 3.42's, exhaust work...
1983 GMC Sierra K1500 SWB-sold :(

Offline Captkaos

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Re: 3 speed on the column to 4 on the floor swap
« Reply #4 on: November 19, 2007, 11:09:50 am »
another one that dropped out of radar.  If someone doesn't respond just post a bump or TTT (to the top) in the post to bring it back up.

Offline sav_x69

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Re: 3 speed on the column to 4 on the floor swap
« Reply #5 on: December 12, 2007, 10:57:42 am »
is the sm465 the best 4 speed for a chev truck

Offline Captkaos

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Re: 3 speed on the column to 4 on the floor swap
« Reply #6 on: December 12, 2007, 11:00:49 am »
Depends on what you are going to do with it.