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Ecklers AutoMotive
Username Post: Crossmember on '58        (Topic#351833)
58 Delray 
Posts: 251

Loc: Texas
Reg: 01-04-07
07-02-18 03:06 PM - Post#2738747    

Does the crossmember have any adjustment options or is in a fixed position?

Edited by 58 Delray on 07-02-18 03:06 PM. Reason for edit: No reason given.

Ecklers AutoMotive
Posts: 27999
Loc: San Francisco, CA
Reg: 11-26-02
07-02-18 11:07 PM - Post#2738774    
    In response to 58 Delray

Are you asking about the crossmember the transmission mounts on and are you asking because you are swapping in a different transmission with a different mounting pad location? If yes, there is no adjustment for the fore and aft position.

Your options are to buy an aftermarket "swap" crossmember, fab a new crossmember yourself, or modify the one you have now.


Those who choose an automatic transmission want transportation. Those who choose a manual transmission want to drive.

58 Delray 
Posts: 251

Loc: Texas
Reg: 01-04-07
07-03-18 02:55 PM - Post#2738839    
    In response to raycow

Yes swapping a 235 cid and power glide for a 327 cid and turbo 350.

Posts: 740
Reg: 12-09-07
07-05-18 09:03 PM - Post#2739138    
    In response to 58 Delray

Well depending on WHICH turbo 350 your using (which tailshaft length) you can use the PG crossmember. The crossmember gets installed in the lower holes for the auto trans. The cross member also is slanted and for the life of me I cannot remember which way the slant goes at the moment. My gut feeling says it goes to the rear of the car. I am sure someone will correct me if I am wrong.

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

Senior Member
Posts: 846
Loc: Etobicoke, Canada
Reg: 10-25-05
07-06-18 11:23 AM - Post#2739201    
    In response to ragtp66

Yes, a TH350 with a 6" tail shaft will mount on the original crossmember.
When I got my Delray, it has a 350/TH350 combination and was mounted on the original crossmember. The short tail shaft helps with the front half of the driveshaft. Less to shorten.

I believe you are correct that the slant go towards the back. helps with leveling the engine.

I'll be Frank, this hobby isn't getting any easier.
58 Delray in disaray

Ecklers AutoMotive
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