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Username Post: 1958 impala 2004r trans swap        (Topic#360898)
Posts: 21

Reg: 11-01-19
05-10-20 09:38 AM - Post#2793393    

How much should the front half of the driveshaft be shortened? The car is 100% stock now 283/pg

And what do you do with a crossmember?


Posts: 891

Reg: 12-09-07
05-13-20 07:45 PM - Post#2793731    
    In response to Meyer will have both crossmember and the correct length front shaft.

1958 Impala 2dr Hardtop Under Construction
1966 Chevelle Malibu Convert M20/350 Aztec Bronze
1987 Sea Ray Pachanga 22
2002 Cadillac Escalade EXT Parts chaser
2007 Trailblazer SS -gone and missed

Posts: 986

Loc: Scotts Valley, CA
Reg: 03-20-10
05-23-20 10:14 AM - Post#2794554    
    In response to ragtp66

When I installed the OD transmission in place of my stock 3-speed, I simply measured the difference in transmission lengths from the mounting flange to the end of the tailshaft. I took the front driveshaft to a local driveline shop, had them cut out the difference that I measured above, reweld and balance. It fit perfectly with no problems.

'58 Delray 283 3-speed OD
In the family since new


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