Need some Trans info and help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

gregg72340 · 11-12-2010, 02:26 PM

ok guys I need some help here.

I have an 85 2wd 1/2 ton with a 305/th350 combo. The trans is blown.

I have an opportunity to pick up a 81 c-10 diesel missing a bed for $150 but the drivetrain is complete. Its an automatic in the thing so does can anyone tell me what trans is in this thing, and will it bolt up to my Gas 305 without any problem?

Thanks in advance
Gregg

**old Rusty C10** · 11-13-2010, 11:37 AM

you would have to look under the truck to see what trans is in there. Its identified by the pan/ Im thinking the diesels came with a th400 back then so you would need to swap driveshafts and i believe the kickdown cable is different. Also the 400 does not use the vacuum advance that you would have to block off at the carb
this link helps identify the trans by the pan http://www.nastyz28.com/chevy-transm...tification.php

geezer#99 · 11-13-2010, 11:57 AM

I don't think the tranny swaps. The diesels where based on a 350 Olds block that had a different bellhousing bolt pattern. IIRC

11-12-2010, 02:26 PM	#1
gregg72340 Registered User Join Date: May 2010 Location: ambler, pa Posts: 325	Need some Trans info and help ok guys I need some help here. I have an 85 2wd 1/2 ton with a 305/th350 combo. The trans is blown. I have an opportunity to pick up a 81 c-10 diesel missing a bed for $150 but the drivetrain is complete. Its an automatic in the thing so does can anyone tell me what trans is in this thing, and will it bolt up to my Gas 305 without any problem? Thanks in advance Gregg __________________ Just would like the snow to stop so I can actually work on my truck!!!!!!!!!!!

11-13-2010, 11:37 AM	#2
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,277	Re: Need some Trans info and help you would have to look under the truck to see what trans is in there. Its identified by the pan/ Im thinking the diesels came with a th400 back then so you would need to swap driveshafts and i believe the kickdown cable is different. Also the 400 does not use the vacuum advance that you would have to block off at the carb this link helps identify the trans by the pan http://www.nastyz28.com/chevy-transm...tification.php __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

11-13-2010, 11:57 AM	#3
geezer#99 Registered User Join Date: Aug 2009 Location: Bowser Posts: 13,538	Re: Need some Trans info and help I don't think the tranny swaps. The diesels where based on a 350 Olds block that had a different bellhousing bolt pattern. IIRC



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