TH400 GTO to Cutlass question

sklbndt · February 13th, 2009, 03:57 PM

Anyone know the differences, if any, between a TH400 that would have been in a GTO versus one in a Cutlass? Am considering purchasing one for my Cutlass that came out of a GTO. Thanks in advance.

gearheads78 · February 13th, 2009, 04:39 PM

Quote:

Originally Posted by sklbndt

Anyone know the differences, if any, between a TH400 that would have been in a GTO versus one in a Cutlass? Am considering purchasing one for my Cutlass that came out of a GTO. Thanks in advance.

Both will be the same

Ranzan · February 13th, 2009, 06:40 PM

Quote:

Originally Posted by gearheads78

Both will be the same

X2 except you will have to wash off the pontiac koodies!!!!!!!!!!!!!!!!!

joe_padavano · February 13th, 2009, 08:41 PM

Quote:

Originally Posted by sklbndt

Anyone know the differences, if any, between a TH400 that would have been in a GTO versus one in a Cutlass? Am considering purchasing one for my Cutlass that came out of a GTO. Thanks in advance.

The GTO and Cutlass TH400 transmissions will physically interchange. There may be some differences in the shift points or other programming, but the two will interchange.

sklbndt · February 13th, 2009, 10:45 PM

Quote:

Originally Posted by joe_padavano

There may be some differences in the shift points or other programming

And what sort of problems, if any, might this present?

joe_padavano · February 14th, 2009, 06:51 AM

Quote:

Originally Posted by sklbndt

And what sort of problems, if any, might this present?

For most stock or nearly stock engines, nothing at all. If you had a W-30, for example, the stall speed and shift points of a non-OW trans might be a problem.

Bluevista · February 14th, 2009, 07:08 AM

Quote:

Originally Posted by Ranzan

X2 except you will have to wash off the pontiac koodies!!!!!!!!!!!!!!!!!

Hey...I can sit in the back seat of my Vista Cruiser and look up at the trans in my goat.

Look the same to me.

sklbndt · February 14th, 2009, 07:19 AM

Quote:

Originally Posted by joe_padavano

For most stock or nearly stock engines, nothing at all. If you had a W-30, for example, the stall speed and shift points of a non-OW trans might be a problem.

I'm going to be going with a stock 69 Toro Engine (non w34). Can you, or anyone else, give me an idea of what coded TH400 I should be looking for? Looking in my chassis manual I'm thinking an OD, OG, or OW code would be good.

The GTO trans I was looking at was sold and since I don't need the trans right away (lots of work to do) I'm thinking I'll hold out for an Olds transmission.

February 13th, 2009, 03:57 PM	#1 (permalink)
sklbndt Registered User Join Date: Jan 2008 Location: Virginia Beach, VA Posts: 111	TH400 GTO to Cutlass question Anyone know the differences, if any, between a TH400 that would have been in a GTO versus one in a Cutlass? Am considering purchasing one for my Cutlass that came out of a GTO. Thanks in advance. __________________ John Tucker 68 Cutlass S Convertible

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