A Little Help Please - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1978steven · 02-09-2005, 08:27 PM

I acquired some pretty good parts from a 67'-68' GMC my grandparents scrapped and need a little help with what I have. The truck was a V6 automatic LWB. So I took the coulmn, linkage, tranny crossmember, driveshaft, and the tranny. Since I'm not too familiar with this engine setup, I was wondering what tranny this could be (TH350 or TH400)? I have compared it with a TH350 my brother-in-law has and it doesn't look like one. I haven't seen many TH400's so I don't really know if it is infact a TH400. Does anyone have a way to tell what tranny it is?

The tranny crossmember was bolted in place, and the tranny mount holes in the middle of it were enlarged with a cutting tourch. So I'm sure the tranny has been out of it sometime in the past and rebuilt or possibly replaced.

I want to have it rebuilt so I can use it in my truck but I want to make sure of what I have.

jef5150 · 02-09-2005, 08:53 PM

try here http://www.martelbrothers.com/catalo...ts_page_1.html jeff

Erl · 02-10-2005, 11:18 AM

It is a T400 or a Pow-R-Flow (2 speed). I would be interested in purchasing the transmission adpter for the 305 V6 if you are not going to use it.

1978steven · 02-13-2005, 11:30 PM

It looks like I have a TH400.

Thanks for the help....

Quote:

Originally Posted by jef5150

try here http://www.martelbrothers.com/catalo...ts_page_1.html jeff

1978steven · 02-13-2005, 11:34 PM

Quote:

Originally Posted by Erl

It is a T400 or a Pow-R-Flow (2 speed). I would be interested in purchasing the transmission adpter for the 305 V6 if you are not going to use it.

I have to ask my brother-in-law to see if we kept that. I don't have it here and I don't really remember what we did with it. I'll get back with you and let you know.

02-09-2005, 08:27 PM	#1
1978steven Registered User Join Date: Oct 2004 Location: Currently New Windsor, NY but Texas is home Posts: 332	A Little Help Please I acquired some pretty good parts from a 67'-68' GMC my grandparents scrapped and need a little help with what I have. The truck was a V6 automatic LWB. So I took the coulmn, linkage, tranny crossmember, driveshaft, and the tranny. Since I'm not too familiar with this engine setup, I was wondering what tranny this could be (TH350 or TH400)? I have compared it with a TH350 my brother-in-law has and it doesn't look like one. I haven't seen many TH400's so I don't really know if it is infact a TH400. Does anyone have a way to tell what tranny it is? The tranny crossmember was bolted in place, and the tranny mount holes in the middle of it were enlarged with a cutting tourch. So I'm sure the tranny has been out of it sometime in the past and rebuilt or possibly replaced. I want to have it rebuilt so I can use it in my truck but I want to make sure of what I have. __________________ 2002 Silverado 2500HD LB7 CCSB LT EFI Live by Rob at ATP, Edge CTS Insight DSP 5 control, S&B CAI, PPE boost valve, Pro Fab AIH, AirDog II 165, PPE WIF sensor delete plug, 5" stainless exhaust, Cognito braces & HD tie rods, H2's 315/70 R17 BFG's 2004 Tahoe LT 2006 Silverado Z71 LS 1971 Chevy C10

02-10-2005, 11:18 AM	#3
Erl Registered User Join Date: Mar 2002 Location: Dallas, TX Posts: 555	It is a T400 or a Pow-R-Flow (2 speed). I would be interested in purchasing the transmission adpter for the 305 V6 if you are not going to use it. __________________ 1968 GMC 305 V6 3/4 4x4 Stepside 06 Corvette Daily Driver Dallas TX

02-09-2005, 08:53 PM	#2
jef5150 Inline 69 Join Date: Apr 2003 Location: valleysprings,california Posts: 1,018	try here http://www.martelbrothers.com/catalo...ts_page_1.html jeff



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