buddy208 Posted September 7, 2009 Posted September 7, 2009 does any one know the angle that the axle has to be at
Automan2164 Posted September 7, 2009 Posted September 7, 2009 More than 1 degree when pointed towards the trans. Rob L.
redneck23ms Posted September 7, 2009 Posted September 7, 2009 if you are running a sye then you want the pinion to be pointed about 1 degree lower than the t-case output. if you're running the stock slip yoke then you pinion angle should be the same as the angle of the t-case output shaft.
Automan2164 Posted September 7, 2009 Posted September 7, 2009 :headpop: If you posted more info than the 1 sentance questions you ALWAYS give us, it might help. Sorry, but this has been bothering me. I don't mean to jump on ya like that, but PLEASE provide us with a little more than just one sentance. In this case, these are things that might help us really zero in on your needs: Axle? Amount of lift? What kind of suspension your running in front? Why you need to re-do the angle? Info, info, info. Rant over. Rob L.
buddy208 Posted September 7, 2009 Author Posted September 7, 2009 :headpop: If you posted more info than the 1 sentance questions you ALWAYS give us, it might help. Sorry, but this has been bothering me. I don't mean to jump on ya like that, but PLEASE provide us with a little more than just one sentance. In this case, these are things that might help us really zero in on your needs: Axle? Amount of lift? What kind of suspension your running in front? Why you need to re-do the angle? Info, info, info. Rant over. Rob L. the axle is a dana 35 with 6inches of lift with 3.5'' coils and 2.25'' puckets, i believe its a rough country lift (i don't know bought from a friend), and i need to redo the angle cause the lower control arms are touching the shock mount
Pete M Posted September 7, 2009 Posted September 7, 2009 Front axle is a Dana 30. Dana 35 is a rear axle for Jeeps. :thumbsup: Do you have adjustable control arms? Were the arms designed for the 3.5" coils and the pucks added in later?
buddy208 Posted September 7, 2009 Author Posted September 7, 2009 no the arms are not adjustable and we made them after the pucks were put on
Pete M Posted September 7, 2009 Posted September 7, 2009 Stock uppers? But back to your question, what is your caster currently set to?
Eagle Posted September 7, 2009 Posted September 7, 2009 :agree: Not only pictures. There are multiple angles you have to take into account with the front axle, and it usually results in a compromise. To reduce the likelihood of death wobble, you ideally want to keep the caster angle as close to stock specs as possible. But with 6 inches or more of lift, that results in an excessive u-joint angle at the pinion. So you have to start balancing out the pinion angle against the caster angle and hope you can find a happy medium that doesn't cause death wobble, yet doesn't eat the drive shaft u-joints alive.
buddy208 Posted September 10, 2009 Author Posted September 10, 2009 i don't know if these help or not
Eagle Posted September 10, 2009 Posted September 10, 2009 Buddy, I don't know what you're doing wrong (or not doing right), but your photos are not showing up. And they don't work as clickable links, either.
watchamakalit Posted September 10, 2009 Posted September 10, 2009 i don't know if these help or not Fixed your pics for ya.
buddy208 Posted September 10, 2009 Author Posted September 10, 2009 LCA - 16 5/8" UCA - 15 1/4" but i think those are wrong
Automan2164 Posted September 10, 2009 Posted September 10, 2009 :hmm: Wrong how? Measurements wrong, reversed, too long, short? :dunno: Rob L.
Pete M Posted September 10, 2009 Posted September 10, 2009 Can you take a picture of the side of the truck showing how centered the tire is in the wheelwell?
HOrnbrod Posted September 11, 2009 Posted September 11, 2009 I'd also be interested in what your caster angle is. Do you have an angle finder? If so, you can take the measurement on the ball joint flat. Buddy, you have to know this stuff to make it right. :D
mvusse Posted September 11, 2009 Posted September 11, 2009 Those look like stock control arms to me. They are not designed to clear high angles created by lift. Most after market control arms, be they adjustable or fixed, are made in such a way as to offer more clearance on the axle end.
Eagle Posted September 11, 2009 Posted September 11, 2009 Those look like stock control arms to me. They are not designed to clear high angles created by lift. Most after market control arms, be they adjustable or fixed, are made in such a way as to offer more clearance on the axle end. Ka-Ching! :agree:
MrSimon Posted September 11, 2009 Posted September 11, 2009 Couple things .... that pinion angle is too steep. You need to flatten it out by getting adjustable uppers and lengthening them. Getting adjustable lowers and shortening them would work too, but I'm pretty sure that would pull your axle too far toward the rear of the truck. You need adjustable arms, upper and lower, for 6" of lift. You should also get drop brackets. They will greatly inmprove your ride quality and geometry. They will also fix your issue with the lowers hitting the shock bucket. If you don't' get drop brackets, do this to your shock buckets:
buddy208 Posted September 12, 2009 Author Posted September 12, 2009 :hmm: Wrong how? Measurements wrong, reversed, too long, short? :dunno: Rob L. I'm not sure which one is wrong but the axle pionts down a little
buddy208 Posted September 12, 2009 Author Posted September 12, 2009 my dad wants me to figure out the measurement from the frame to the axle
Eagle Posted September 12, 2009 Posted September 12, 2009 my dad wants me to figure out the measurement from the frame to the axle That only tells you how much lift you have. More important is the caster angle and the pinion angle. Then you need the driveshaft angle to figure out the operating angle at the pinion u-joint. An excellent article to get you started is from our friend GoJeep, in Australia: http://gojeep.willyshotrod.com/HowtoAlignment.htm
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