Suspension blocks and pinion angle
So far this season I have been running 2" blocks in my truck and I want to take them out to lower the back down to stock. My question is, is my blocks are tapered 1/4" from end to end making the rear end point more towards the ground making the pinion angle, if I take them out should a run a wedge to keep that angle or don't worry about it? Idk what kind of pinion angles you guys are running or what not so I'm a little curious.
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Less angle on ujoints is more good!
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So if I would take the block completely off and my rear end would point more towards the trans would be best?
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Of course a good set of traction bars will help eliminate this. |
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Check out this picture: https://www.cherokeeforum.com/attach...nion-angle.jpg Ideally you want more than 2deg of angle (to keep the bearings/caps spinning and supplying grease), and less than 4deg of angle (to keep wear down in the bearings/caps). On a double cardan setup, like in the front driveshaft, you want to match the driveshaft angle with that 2-4deg angle in mind (close to the 2deg if you can). All that said, just measure your t-case angle, and then make some shims to match it on the pinion and you're good to go! This is cool too: |
Yea I made a set of bars that I have been running this year that are 2" OD and 1/2" wall and 6' long. So those are not allowing a ton of movement
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On your last post you said to check the angle of the t case and have your pinion angle match, but then you said I should have a 2-4 degree difference. Should the pinion match the t case or no?
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In theory, you'll get the best performance going down the track and driving if it's completely parallel. |
Ok thanks for all the help guys!
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I run about 2 degrees down on pinion compared to the angle of the tranny/TC to the drive shaft. Even with ladder bars, the rear will twist up, especially with a diesels torque. You may have to go even more down angle if it is not hooking. Might want to stick a gopro under there and watch the rear axle, then you'll have an idea of what is happening on your setup.
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