I have an idea and I need some more info to make it work. I want to use a later model spring , mounted behind my axle, and hung from a flat or almost flat rear crossmember. I am building a 31 model a coupe and need to drop the back 6 inches or so but I don't want to z the frame. So I'm thinking this way would give me the drop I need but I'm can't find any info on what spring might work, I'm thinking 40 ford might be about right but not sure. Any help would be great thanks
Why a different spring and crossmember? You can use your A spring and crossmember in a spring behind setup with no Z, and go as low as you want. The frame gets stretched 7 1/2 inches, new perch mounts and you keep the stock wheelbase. I used 35/36 bones and perch mounts but if you fab your own, you can mount them anywhere you like and go as low as you want.
I am hoping to go with a flatter crossmember so I have a little more room in the trunk, with the stock crossmember there is a lot of arch in it
Instead of stretching the frame, remove the rivets from the crossmember and slide it FORWARD the 7.5", swap the bells on your rear end so that the spring mounts in front and then have the spring forward of the rear end. Had i not welded the crossmember into my chassis i would of done this instead. I ended up stepping the rear.. but a friend did it this way and it seemed so obvious.
How do you do that not have interference with the driveshaft? Posted using the Full Custom H.A.M.B. App!
Sliding the crossmember forward won't work in a Model A frame, they aren't made that way A Model A frame rail is fairly parallel in the area around the middle crossmember and would be easiest to split and stretch in that area
So if you are adding a small block Chevy it would be a good opportunity to add how many more inches to the stretch? Posted using the Full Custom H.A.M.B. App!
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