So I have a 29 model A truck project. I want it lower than stock and today I picked up a 35 Ford ch***is with a spring behind banjo. It it ok to mount the spring like in the picture or should I lengthen the frame and mount it like factory? A prior owner boxed and welded the frame solid so I would not really be wrecking anything. My other concern is will this make the truck too low? I am using a stock 35 front axle with a reverse eye spring up front. Right now it has a stock front spring. The frame is not z'd. Any ideas or pictures is appreciated. By the way, the spring perch picture is one I found in the web.
It shouldn't be too low. Worse comes to worse you could always put a model A spring back in the get it back up. My preference would be to extend to frame, but I've got admit, I have seen lots of old frames done that way. I've even got an old California Bill Fischer book that shows to do that in this case. I would be very careful about how the boxing plates are tied into the rear cross member though. Instead of taking the force of the car moving up and down in a vertical plane, You now have the top of that cross member wanting to twist forward every time the suspension goes into jounce mode. I doubt it will hurt anything, but you might keep your eye on it for awhile after you get it running.
Thanks for the info. I was thinking that doing so as in the picture would load up the rear cross member and try to break it. It would look better to lengthen the frame.
Im also thinking of doing the spring behind my 40 rear on my model A, ive got the stock model A pring and a model T spring, I originally was going to Z the rear of the frame 3 inches and un the model T spring on top of the rear, so If I decided to run the spring behind the rear how much do I need to Z the frame in the rear?
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