Questions and Advice : Model A rat rod chasis

[SlipMag]

hey guys. seen some pretty killer projects on here and i am looking for advice.

so i have a 30 model a 5 window coupe. looking to z the frame and setup the suspension. frame is already boxed and has a jag rear. I don't like the stance. it is way too high and i am taking the rear out as i have a 9 inch to slide under it. i have a couple choices on front axles. friends have a 2, 4, and 6 inch drop axles.

so my question is... how much of a drop axle do i need if i am doing a z on the frame. and how much z do you recommend? i am just looking for advice as i have an idea of what i am going to do. all help is appreciated!

also if anyone is interested in the jag rear....

thanks again...
joe

 

[donsrods]

Well Joe, there are two ways to approach this subject. Either you can Z the existing frame, or build an entirely new one out of 2 x 3 or 2 x 4 box tubing. As crazy as it sounds, it would actually be easier to build an entirely new frame than Z the old one, IMO.

The reason I say that is because the stock Model A frame has an odd profile. It tapers smaller at the rear and at the front. To Z it you would have to play games getting those dimensions to meet up once you sever it. Plus, Model A frames were not all that strong when new, and now it is 80 years old and even more weakened. By building a complete new frame you are free to set the ride height wherever you want.

If it were me I would sell the frame and rear axle assembly intact to some streetrodder and use the cash to finance the new frame. By building a new frame you can also use something as mild as a 4 inch front axle and get is real low.

Don