need some help with pinion angle

i'm seeing some mis-information, mis-worded information, and just plain wrong information here.
check out and read the whole article paying special attention to page 3
it has this diagram and should help you out a lot


keep in mind that a one piece driveline sets the pinion differently than a two piece, and do NOT change the height of your carrier bearing so there's no angle change out of the transmission tailshaft. leave it where it is and work from there.

thats the article i was lookin for thanks man, i couldnt exactly remember all the specs on how it went

so say some cat i know messed it up when he set up my 4 link ..........what should i do if i dont have have the original ride height setting?

fatboy i like the look of ur tray, looks clean man, sorry to jack thread lol, i also need help on pinion, think general rule of thumb is 3 degrees down???? dont quote me tho

no matter what, you are gonna have to cut the tabs off and re weld them... If your instant center is way off, you're pinion angle is gonna change alot throughout the range of motion so you may have to completely rework the 4 link... Do you have any pics of the setup??? air'd up and laid out??

dude, you should stop posting these 'facts' because so far you've been not entirely accurate with your advise...
you do not have to cut your tabs 'no matter what'. you might be able to adjust your bars(if u have adjustable bars) to re-angle your pinion. if not, then yes like josh said, you'll need to cut your tabs or get new bars. and its likely your IC is fcuk'd up because your 4link is reversed. its a poor design to start with, and has poor handling characteristics.
i would agree on the likelyhood that you should redo the 4link. post up some pics of your setup fatboy!!

o and your ride height is what you want it to be at... generally it should be where your lower bars are parallel with the ground.

Alright heres what i done on my mazda. You wont more than 1/2 degree but no more than 3 degrees between each joint. Thats from the tranny tailshaft. to the first driveshaft, and from the second driveshaft, to the rearend. Put your angle finder on the tailshaft and record that degree. then put it on the first driveshaft and record that degree. You want more than 1/2 degree, but no more than 3 degrees change between that joint. I had to raise my carrier bearing 1 5/8" to get the degrees right between each joint. My driveline made like a v at the carrier bearing, each shaft sloped to the carrier bearing bad, making it impossible to get the driveline right. So i made a new crossmember for the carrier bearing, raising it in the process. Now my driveline is right, each joint has more than 1/2 degree, but no more than 3 degrees. A 2 piece driveshaft is set up differently than a 1 piece. You dont just set it equal and opposite the tranny. You start at the tailshaft and work your way back toward the rearend, making sure their is more than 1/2 degree, but no more than 3 degrees change between each joint. A guy on streetsource, about 2 years ago, spent about 3 days explaining how to set up a 2 piece driveshaft. Anyways like i said, i had to raise my carrier bearing to get the driveline right. Hope this helps you some. Also set all this up at ride height. If it was me, i would change the reverse 4-link to the forward 4-link, but thats just my opion.