![]() ![]() This means uppers as high as possible on the axle, and lowers as low as practical. Get as much triangulation as possible when comparing the uppers and lower links, when viewed from the side. ![]() If you can't get 40 degrees, plan for a panhard (track) bar to locate the axle laterally. Add the upper and lower triangulation amounts, when triangulated in opposing directions. You want at minimum, 40 degrees of total triangulation when viewed from the top. Uppers at 67-70% of lowers will keep antisquat through travel consistent, but will have more pinion angle change.Ĭompromise for what's important to you, and design for what style driveline you will run. You will have to compromise travel antisquat with pinion change. Lower link length close to tire diameter. If you have some pinion angle change, ideally have the pinion rotate up slightly at full droop, but this means longer uppers than lowers wen viewed from the side horizontally. Here are some design points to shoot for:Īs close to zero pinion angle change as possible. Personally I like around 80-85% and the above rules get me pretty close to that number usually Ideally in a perfect world you would want it right on top of the front axle.Īntisquat: I've found numbers as low as 50% work better for going fast, to 100% for rigs that climb a lot of vertical ledges. ![]() Instant center (the imaginary point where the upper and lower links converge) should always be in front of the front axle. Upper links should be around 85% of the length of the lowers Upper links separation from the lower links at the frame end should be between 70-85% of the separation at the axle end. The taller the upper link mount is on the axle, the more stable the rig will be and the better it will climb. I try to not let the frame end of the link mount be more than 2-3" higher than the axle end at ride height. Also try to get them as flat as possible. Lower links should be atleast 36" long, and minimum of 15 degrees of triangulation. Roll center height needs to be as high as humanly possible, and should be higher than the frame lower link mounting point These are my general rules when building susp. Take them with a grain of salt, because every driver, every rig, and every terrain will have a different setup that works best for them. ![]()
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