The 1947 - Present Chevrolet & GMC Truck Message Board Network

The 1947 - Present Chevrolet & GMC Truck Message Board Network (https://67-72chevytrucks.com/vboard/index.php)
-   The 1967 - 1972 Chevrolet & GMC Pickups Message Board (https://67-72chevytrucks.com/vboard/forumdisplay.php?f=3)
-   -   TH350 to 700R Swap? (https://67-72chevytrucks.com/vboard/showthread.php?t=804315)

YourBuddy'sTruck 04-13-2020 09:41 PM

TH350 to 700R Swap?
 
2 Attachment(s)
I've a 1970 C20 with a stock 350cc and TH350 Transmission.
My Transmission recently went out and I'm looking for options vs. rebuilding.
Would this 700r4 be able to replace my TH350?
I see this one has a transfer case and I am asking if I could remove this and bolt up my TH350 Tail Housing in its place.
Also, would that deeper pan fit under my truck? The Cross Member?
I'm looking for the chance to skip rebuilding my TH350 and move into the 4 Speed.
Am I completely off the reservation or have I maybe found what I need within 20 min drive? Please forgive me if I'm foolish as this is the least understood part of the drive train in my mind.
Please refer to photos from my friend, the local owner.

Bigdav160 04-13-2020 09:48 PM

Re: TH350 to 700R Swap?
 
No, that won't just bolt in place but it looks like a desirable setup for the 4WD guy

Myself 04-13-2020 10:25 PM

Re: TH350 to 700R Swap?
 
Yep, the output shaft on the 700r4 4x4 trans is different than a 2wd version. You CAN change the output shaft but that requires trans disassembly. Swapping in a 2wd 700r4 is a fairly simple swap, probably a trans x-member move (the mount is a couple inches difference), if you currently have a 9" tailshaft on the th350 the driveshaft length remains the same, and a little wiring to control the lockup.

davischevy 04-13-2020 11:04 PM

Re: TH350 to 700R Swap?
 
Somebody here would love to have that setup for a 4x4 because the transfer driveshaft is on the passenger side.

YourBuddy'sTruck 04-14-2020 07:14 AM

Re: TH350 to 700R Swap?
 
Thanks fellas.
Most informative.
Obviously, I'll be passing on this one.
If anyone is interested, search FB Marketplace. It's in Bellevue, Ohio.


All times are GMT -4. The time now is 12:43 PM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Copyright 1997-2025 67-72chevytrucks.com