Thread: triangulated 4 bar

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I had exactly the same space problem you have with my '39 Dodge truck I am doing. We looked at all kinds of options and finally settled on a three bar set up from Suicide Doors. Now, on mine it was pretty easy because they make an adapter plate that goes behind the rear cover of the rear end housing , and off of that the top Y bar is mounted. Then two lower parallel bars come off of the bottom of the axle to the frame.

You will have a problem though because they do not make an adapter with the same rear cover bolt pattern your Chevy axle (mine is an S10 rear, the only one they make an adapter for. My Son Dan was using the same rear axle as you under his '29 and he wanted to use the same Suicide Doors setup, so what he did was make his own adapter plate. He simply took a big piece of 1/4 inch thick steel plate, used the proper gasket to transfer the pattern onto it, cut out the center and drilled the mounting holes so it could be mounted behind the rear cover and housing. He did some reinforcing at the top, mounted ears to fasten the Y bar to, and he was home free. He did have to make a flat steel ring to go down into the groove of the rear cover. Otherwise, the adapter plate won't sit flat.

Suicide Doors will custom make these to any length you want. Here are some pictures. Mine is the black truck and his is the bare frame in these shots.

Don

BTW, my bars are only 16 inches long overall, and will handle a four inch up and four inch down travel in the rear end.