Can the center crossmember stay on a Model A frame if I’m going to run a Chevy 4cyl and a 3 or 4spd transmission? I can’t visualize it and I’m at the point where I’m stripping the fender brackets and brake rod brackets before I box the frame so it’s at the point I really need to decide. I’ve also got a Roadster supply rivet in crossmember to install ( will bolt in for location and then weld )
Yes it clears. I put a chevy 4 bolted to a 39 ford trans with a speed gems adapter to a stock model A torque tube and banjo and the floor was kept 100% flat and I didn’t touch the center cross member. I’ll get a link to my thread for ya. I’ve changed directions with the drivetrain now but there’s still lots of photos and lots of rambling for you to look through. Edit: here ya go https://www.jalopyjournal.com/forum/threads/timm-builds-a-model-a.1011601/
If you are not using a frame jig or something similar to keep it square, then leave the stock crossmember in until you get it mostly boxed and the other crossmember installed. Once it's all secure, you can remove the OE crossmember if it doesnt clear the new transmission.
I’ve got a wooden frame that i built square and level as a jig, where I can attach shims to and square/ level the frame to and clamp it in place. It’s not a perfect solution but should keep things true.
thanks. I kind of thought it would , but there’s no clear answer through tons of research.. I’m going to make mine a roller without engine or trans before I put a body on it as I don’t have a body yet
I felt more comfortable leaving it in place. I have a sbc and t5 so I notched and reinforced the center cross member for shifter and brake master cylinder. The transmission cross member is bolted to the bottom of it. Phil
thanks. That’s exactly what I was thinking I could do. I think I’m going to use some Jegster ladder bars that Ive got kicking around. I’ll set them up like you have with a cross member right behind
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