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Mod | | | Forums66 Topics128,167 Posts1,057,021 Members48,458 | | Most Online14,466
Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Jul 2008 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2008 Posts: 50 | I was driving my truck home from work the other day and blew out a transmission seal. I was thinking this might be a good opportunity to upgrade transmissions since I have to pull this one out. It currently has a three speed automatic. I want to install a 5 or 6 speed automatic. The truck has the original 350.
Is this possible?
What transmission could I use?
Could I get a rebuilt one out of a newer truck?
1949 Chevy 4400 GrainbedIn the Stovebolt GalleryPhotobucket picturesThe taxpayers are sending congressmen on expensive trips abroad. It might be worth it except they keep coming back! Behind every successful rancher is a wife who works in town.
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | This is a very popular modification. The 88 up to about 92 700R4 is a 4 speed o-drive trans. that works great in these trucks. It is fairly easy. You need to get the correct cable hook up & have the drive shaft shortened. You can get one from a salvage or specialty trans. co. If you are near K.C. there is a rebuilder here in town that sells them over the counter at a reasonable price. If you are interested e-mail me. [email protected]
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: Jul 2008 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2008 Posts: 50 | I have a transmission i am pulling out of a 1989 chevy 1500. I will have to remove the transfer case and install a new tail housing/shaft since my 70' is a 2wd. Will this work? My 70 is a 3/4ton.
Last edited by 49' Hayhauler; 09/16/2012 9:47 PM.
1949 Chevy 4400 GrainbedIn the Stovebolt GalleryPhotobucket picturesThe taxpayers are sending congressmen on expensive trips abroad. It might be worth it except they keep coming back! Behind every successful rancher is a wife who works in town.
| | | | | Joined: Nov 2006 Posts: 2,544 Shop Shark | | Shop Shark Joined: Nov 2006 Posts: 2,544 | You will probably need to have your driveshaft reworked. You will also need to get a way to deal with the lock up torque converter also. | | | | | Joined: Jul 2008 Posts: 50 Wrench Fetcher | | Wrench Fetcher Joined: Jul 2008 Posts: 50 | So I will need a lockup kit? I have heard that I will need to shorten the drive shaft.
1949 Chevy 4400 GrainbedIn the Stovebolt GalleryPhotobucket picturesThe taxpayers are sending congressmen on expensive trips abroad. It might be worth it except they keep coming back! Behind every successful rancher is a wife who works in town.
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