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#22951 06/20/2002 9:58 PM | Joined: Jan 2000 Posts: 101 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 101 | After reading through 67 posts doing a search for tranny here is my question.
I have a 53 1/2 ton with a 54 235, 3-speed on tree and torque tube drive.
I want to put in a mid 80's 4WD K-5 Blazer rearend (6-lug), keep the 235 and the 3 on the tree.
What tranny and years should I shop for?
This truck is for cruzin, not hauling.
Mark
1946 1/2 ton - 1962 "261"
1953 1/2 ton 5-window - "235"
1955 1/2 ton - 55 "265" Corvette motor
1959 1/2 ton Fleetside - "283"
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#22952 06/20/2002 11:31 PM | Joined: Oct 2001 Posts: 3,458 Extreme Gabster | | Extreme Gabster Joined: Oct 2001 Posts: 3,458 | Any '55-62 tranny will work, that is when they went to the open driveline. You can also switch to an SM420 if you want four speeds.
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#22953 06/21/2002 5:54 PM | Joined: Jun 2000 Posts: 4 Junior Member | | Junior Member Joined: Jun 2000 Posts: 4 | Mark,
I made this swap just recently. My advise is to keep the original rear end and change the ring & pinion. In my swap I used a 79 camaro rear with a full syncro 3 speed saginaw. The 3 on the tree linkage was a real BEAR. I took me a long time to fabricate the linkage using some parts from a MR. Gasket 3-speed stick shift linkage. It works but the shifter sometimes sticks. And the throw is shorter for reverse & first than second and third.
If I had to do it again I would just swap the ring & pinion. I could send you some pictures of the fabricated linkage. It might help you to make up your mind about which way you want to go.
The truth will set all men free.
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#22954 06/21/2002 10:26 PM | Joined: Nov 2001 Posts: 275 Shop Shark | | Shop Shark Joined: Nov 2001 Posts: 275 | If you can swap side cover, levers, etc. from your old trans. to the donor, it should be much more painless. Am currently doing that with my 56, swapping in a mid-60's 3-spd OD behind a 261 with a Chevelle 12 bolt posi. | | |
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