Just got finished with this last night. Had to build a new trans crossmember as I'm putting in Hawk's long tube headers with the rebuild this time. I didn't like the way the Hawk's y-pipe went under the factory crossmember so I made a new one to keep from losing ground clearance.

Made it out of a piece of 1/4" plate and 1"x1" tubing for the actual trans mount plate, the 2 "humps" are cut from 1/4" x 5" angle, and the 2 frame plates are made from 1/4" cold roll steel. Ended up taking a lot longer to make than I expected or planned, but it turned out well.


And the weld on the left, it's just the shadows, it doesn't really look that bad

 

Similar idea to a g-body double hump crossmember but I've never seen anyone do it for a third gen f-body.

Here's the link. There isn't one listed for third gens

http://www.transmissioncenter.net/gf..._.htm#f%20body

 

Nice. Good job. Reminds me of the Skulte designd one.

http://www.skulte.com/product_info.p...products_id/83



I've been using a similar one built by the member "drews" for quite awhile. Made it really easy to put my LTs in.



Another members mounted up. Don't recall whose car this was though.

 

I like that Skulte design. It puts the angle iron ends pointing upwards away from the pipes but the angle has been flattened out to fit better. I may incorporate that design in my new crossmember. Dual 4" pipes don't leave a lot of room. My pipes currently run under a home made crossmember but I don't like the design and will redo it later this winter when I yank the tranny out.

 

that's the one I remembered seeing. I couldn't remember who's design it was though. The last one I made was out of 1"x3" rect. tubing like his, but I didn't have any this time around.

 

what about doing this with a 700r4 all it shows from skulte is for a t-56 swap
whats the difference in tranny mounts?

 

Heres one someone did from here and I powder coated it for him. I forget who it was.

http://www.cecoatings.com/images/coa...rossmember.jpg
http://www.cecoatings.com/images/coa...ossmember1.jpg
http://www.cecoatings.com/images/coa...ossmember2.jpg
http://www.cecoatings.com/images/coa...ossmember3.jpg
http://www.cecoatings.com/images/coa...ossmember4.jpg
http://www.cecoatings.com/images/coa...RQarmmount.jpg

 

The one the OP posted doesn't look near as strong as the other ones . Those ones are boxed, although the last one only partially. The first one is just flat stock. I don't know if it's strong enough or not, but it's not as strong as the others.

Mathius

 

The only thing I see with the one pictured in post 7 is you loose some ground clearance compared to the others. Otherwise very well made.

 

do they make these for 700r4