can anyone tell me what the mak pinion angle on a d35c is. a friend of mine has a jeep and the pinion bering shattered. her jeep is SOA on stock springs. i think the reason the bering failed is because the pinion angle is to high.

thanks

CV or non CV?

If it's CV the pinion needs to be pointed directly at the output of the case, less 1-2 degrees down.

if it's not, the pinion angle needs to match the ouput shaft ange. e.g. ouput shaft points 3 degrees down, pinion points 3 degrees up.

it is a non cv i am sure... so i guess it should be level with the t-case. if the pinion is rotated too far up, would that cause a lack of gear oil to get to the pinion bearing?

It also could have been mis-matched driveline angles causing vibration that caused the bearing to fail.

It could be the angle or could be the simple fact that its a Dana 35... I exploded mine on the street going around a corner at 25mph. Just exploded and locked up the wheels completely. I would suggest taking this op. to swap something else in. Just my opinion. :D

Im with rockbuggy on this one.. Im surprised I havent blown my D35 up yet the way I treat it. And Rockbuggy's been there to see me beat it too :D It was fun. Im not gonna wait till it blows either, Im gonna be swapping out both my D30/35 asap, with a 44/9" combo :D
Scott

dana 35"s are the devil. I have seen them break on 4cyl. with 33's. i would recommend a dana 44 or preferably a 60. by the way im in waco, and a member of bear 4x4, are you in the club down at atm?

soa + no cv = dangerous

Originally posted by swamper502
dana 35"s are the devil. I have seen them break on 4cyl. with 33's. i would recommend a dana 44 or preferably a 60. by the way im in waco, and a member of bear 4x4, are you in the club down at atm?


Yes...i am Vice President of Texas A&M Off-Road. its funny you should say you have seen them break with a 4cyl and 33's cause thats exactly what this jeep has. The dumbasses that took it apart for here a couple days ago said "ony the pinion bearing is messed up" after i told them that if something like that goes bad then it has more problems then the untrained eye can see. well now that they took the axle to the shop they say it is basically completely shot.

are you in Baylor's offroad club? if so a couple guys from our club(said it was an invite only) wheeled with yall last spring.

yeah i couldn't make it that day but i heard it was a lot of fun. what have you done to your jeep? i've got a 401/t-18/dana 300 combo and im in the middle of a 14 bolt 60 swap (got the 14 bolt but not the 60 till after christmas) and im running 38 tsl's in beadlocks. just curious. also if your friend would like it i have a good condition 60 that is yj width open carrier with 30 spline 3.73 gears that i would be willing to part with. just let me know. Also there are a couple of us in the middle of axle swaps and what not but begining of next semester we'll be looking to wheel if ya'll are interested.
john

A spring over on a yj is definitely a more difficult lift than most people would think. It's definitely not the hardest, but it is a very challenging lift. With spring over, you should have cv. With a longer slip yoke and the correct pinion angle, it could work, but it wouldn't be very durable. Like someone said before, the angle of the pinion has to match the angle of the yoke on the t-case. the angle of the pinion relative to the ground is almost irrelevant. With a non-cv driveshaft, the higher the lift, the lower the pinion angle should be, relative to the ground. If you don't want to do it properly and just want to keep the 35, point the pinion down towards the ground more. This is because when you have a driveshaft with a Ujoint at both ends, it will spin at the same speed when it is totally flat, or both ends are at 0 degrees. When one angle changes, the driveshaft will not spin at the same speed. The average speed of it will be the same, but it will speed up and slow down 2x every 360 degrees of rotation. This is what causes vibration in drivelines. The vibes can be canceled out by having the opposite angle on the other end of the shaft. With a cv shaft, only one end has a Ujoint. One end goes at a cv (constant velocity) no matter what the angle. This can be done by using two U joints, at 90 degrees from each other, right next to each other. It cancels the speed variation out. Since the other end of the driveshaft has only one U-joint, it has to be inline with the driveshaft in order to maintain the velocity. I hope this helps you out. Oh, the angle of the pinion relative to the ground can be an issue on certain axles, mainly ones which fill up from the cover. When the pinion angle is really high, relative to the ground, it can make it impossible to fill the diff up enough. This may be your problem. If you really want to keep the 35, and have it at an angle, which I definitely don't recommend, but if you are going to do it, park it on a really steep hill to fill up the diff. Again, sorry for the rambling, and hope it makes sence and helps ya. Peace