please help I am installing a dropped axle with four bar. having one hell of a time. it can with no instrutions. and I am not smart enough to or to smart to wing it with out good advice. can I set the camber from the casting of the spindle. and how much on the thread ajustment can I use. 1/2 safe don't know. if I seam lost I am. please help if you can. terry
At minimum you need the diameter of the rod end threaded into the tube, more is better. No you can't adjust camber, it is what it is. Some have adjusted camber on original axles with the hydl. press though.
so if I tighten the sping in the cross member and ajust the bars so that the bracket sit flat to the frame I will be good to go or is not that easy. thanks terry
Set the frame at the angle you want to run, I like a 3 degree rake. Then adjust the bars so you have a 5 to 7 degree caster to the rear. I put a degree gauge on the axle boss. Works for me.
The spring to frame should be very close - still need to check and make sure both sides are equal. I'd try for 5degrees, lots use 7 but it is a little too hard to steer (left hand turn goes uphill and actually has to raise the car). I set the heim/clevis so that 3 threads are visible - that will give you plenty of adjustment either way as long as everthing is initially set right. Other people leave more, but whenever i see more thread showing i think that something was out of whack and they are now at the end of the adjustment range.
is the axle boss the out side area of the king pins on the spindles. can you tell me more about the adjusting of the bar. thank you terry
OK, easiest and best way is to turn the chassis upside down (if possible, if not, just follow these instructions right side up anyway). Remove all leaves from the spring except the longest 2 (main leaf and next one). With the 4-bars adjusted all to equal lengths, with about 3/8" of threads showing on the adjusters, assemble the bars to batwings with the spring, axle, perches and shackles all assembled. If you are NOT sure how these parts go together you need to look at a Pete & Jakes (or similar) catalog for reference. Drop the front spring into the front crossmember for alignment purposes. The partial spring will make the set up be close to what we call ride-height, which makes for a better adjustment built into the system. Lay the bars rearward down along side the frame rails. Measure the bars to be equal distant rearward from the front crossmember and mark the frame rails on both sides. Assemble the frame to 4-bar brackets (28/31 Model A has both bars below the frame in that bracket), to the bars with bolts provided in kit. Tack weld the brackets to the frame rails being sure they are equal distance from the front crossmember. If you are working with a 32 thru 34, then you will probably have a tube that will need to be welded into the boxed frame for the upper bar. This is usually installed close to the lower part of the rail. But, if you know the manufacturer of the kit you are using, a phone call will probably get you a copy of the instruction sheet you need, which would be the best way to do this. (You can also install the front shock kit with the spring set at ride height like this to get the mounts in a good spot for shock travel. Hope I have helped some! Butch
thank you all for the info. this will make it much better on my next try. I bought it from speedway know instuction sheet for model a install. the rear four bar kit came with very good insructions that is a plus. thank you all for your time I hope to figure out how to post some pic's to show you all my project. it is a 28 tudor model a sedan. 3" chop in done frame is boxed and now it is time to put the drive train together. thanks agian this has been my best sourse of info any one can ask for . a good week end to all terry
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