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Air Ride Suspensions \  pinion angle?ext.............

pinion angle?ext.............

Air Ride Suspensions Q & A
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replies 7
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livnthelowlife   +1y
yea im not sure exactly were my four link goes..because of the axl being lifted and lowered it moves forward and back doesnt it?do i just line it up so the driveshaft is correct and the alignment?and can i tack it on without the notch being cut out yet?or do i have to be at ride hight
slammedstroller   +1y
the longer your bars the less your axle will move front to back in most applications... the reason I say that is because some people put the bags way up on the bars for more lift.. the more lift the more your axle moves front to back also.
also there are things like instant center to worry about.. there are some forums on here that go over those things.. but roughly if you took your cab off and streched a string from the center of the bushing that connects you upperbars to your rearend, and made the string cross the center of the bushing that mounts the uppers to your frame and continue to pull the string towards the front of the truck... and if you did the same to the lowers where the strings should meet is somewhere either at or beyond the front bumper... that isn't the only way you can figure where your instant center is but it's the easiest way to understand it with out trying to teach you triangulation formulas
hope this helps
livnthelowlife   +1y
my wishbone\2 strait bars are the same length........can i use stock leafspring mounting to atach to frame?
slammedstroller   +1y
from the pictures it looks like your wishbone is close to if not the same lenth as your lower bars are going to be if you attach them to the leafspring perches... that's good because ideally your upper bars any your lower bars should be the same length to minimize pinion angle changes through all ranges of suspension travel... on the down side your bars are still relitively short and your axle will noticeably change when you lift and lower your truck which could be hard on the driveline if not setup perfectly... I would have made them long enough to go from the crossmember there next to the back of the cab to the axle but that's just me... another thing to concider is if you drag it and have your bars mounted using the leafspring perches you might be dragging into your lower link bars pretty soon
slammedstroller   +1y
oh somthing good I noticed is you got your axis points on your wishbone lined up correctly.. alot of people that do 4 links don't line up there axis points and that makes it really hard on your mounting tabs through suspension travel.. I have seen people do it like that with 3 links as well lol I don't know why but anywayz
livnthelowlife   +1y
thanks........im having the hardest time gettin the front leafspring bolts out (nuts r off)but it wont come out i think its welded.............but no weld around bolt head????????????????????????????????????????
slammedstroller   +1y
all I can say is PB blaster and a big mf'n hammer
livnthelowlife   +1y
yea!.....ive dun both
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