Hello, all! First time posting, here!! Hope I'm not asking a question already tackled! I'll start off by telling you what I'm building, then get into the technical question. I purchased my dream car; A 1926 T Tudor, all original steel. The plan; Custom chassis consisting of 2"X4" rails and 2"X3" rear kick up. The front crossmember will be 2.5"X1/4" wall round tube. I will be tapering the 4" tube, front and rear, to match the 2.5" front crossmember and the 3" rear kickup material, similar to an "A" chassis profile. I have purchased most of the suspension pieces via Speedway motors ('suicide' front end, hairpins, disc brake setup etc.). My concern was the weight of the body on the High Arch Transverse Rear Leaf Spring (Part # 91043102), I purchased and plan to use. The big question, I have, involves the distance between the rear axle mounts, for the spring. The chart (on the Speedway site) only shows specs up to 571lbs, but the steel Tudor body weighs in at around 700lbs. I did some 'mathing' and i came up with an, installed, spring length of 52"(taking into consideration the weight of the body). Does anyone have a formula for figuring out the distance for the axle mounts?? I'm just owrried the spring, I bought, won't work!! Thanks, in advance, for your assistance!!
Welcome to the HAMB! Body in hotrod form,likely not going to be anywere near 700 lbs for just the body,,but rear spring should hold it fine'High Arch is a "T" spring,an if same number of leafs as stock will not only hold,but you many drop out a few leafs as needed to get ride you like<<But all way be sure the shackles are about 45* standing. Spring leafs can be arched custom,I've dome that on a few rods=to get hight an or shackle 45*
dana barlow - I think you're right about the weight of the body. I went with the weight of the full car minus the weight of the chassis. I won't be running fenders, unless the DMV requires it. I had figured on a 44" shackle width ande 45°. TBH, I can't remember how many leafs there were in the original pack, but I'm sure Google can tell me! Thanks, for the input!