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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: duramaxman06 on April 07, 2014, 03:31:54 pm

Title: Tranny change
Post by: duramaxman06 on April 07, 2014, 03:31:54 pm

My truck came out with overdrive transmission now has turbo 350 what will I run into if I put overdrive back in
 


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Title: Re: Tranny change
Post by: zieg85 on April 07, 2014, 04:08:05 pm

More info on what you have for gear ratio, tire size and type of engine/ stock...  It all makes a difference as well as how you use it...

Title: Re: Tranny change
Post by: Captkaos on April 09, 2014, 09:36:26 pm

Are you wanting to know what needs to be changed to do the swap?
move the crossmember mount, potentially a new drive shaft, trans and converter... short answer.

Title: Re: Tranny change
Post by: Irish_Alley on April 16, 2014, 12:03:54 am

IF your th350 has the 9" tail shaft you can just put a 700r4 in its place with no new drive shaft. if its the 6 or 12 you can do the math you will be plus of minus 3" and you will need a new shaft. but both trans use 27 spline output shafts so you can reuse the old yoke