8.8 spring perch angle

[c_note]

so i got a new explorer rearend and since it spring under and i need spring over to work on my ranger, i wanted to know what angle the spring perches should be at. i looked in the tech library and i think i read everthing but that so i wanted to see if anyone know whats an appropriate angle. im also about 2" higher than stock in the rear. i do also have 2.5 degree shims

 

[sweetsride]

the best way to do this is to put the new perches on the axel, bolt it to the springs witht the u-bolts and adjust the angle till you have it where you want it then weld the perches in place.

thats how i did it on my b2 when i put a 9" rearend in there
Kris

 

[c_note]

ya, thats what i would have done but i cant get my truck near my welder and right now i have a blown 8.8 so i cant drive it anywhere. kinda need the angle in degrees! thanks for the advice tho.

 

[Sunk]

You could try setting the axle up on blocks under the perches that are there, then measure the angle the pinion is at from the the ground, then flip the axle over so it's upside down, while resting loose in the new perches. Then match the angle you found and tack it.

 

[brendank]

You mean to say that you would actually weld a set of perches on your axle based on what someone on the internet told you? Do you always intentionally set yourself up to fail?

 

[projectnitemare]

Really you should be able to mock this up based off your old axle. Take the old one out and put it on stands. Get the pinion flange to be vertical then measure the angle at the spring mounts. Set the new axle on the stands and get the spring mounts to match. That will make your new axle identical to the old one. If you have shims and other additions and don't want them in there anymore you are going to have to set the pinion angle from scratch. Get out your tape measure and start measuring. You want the u-joint angle between the front and rear to be within 1 degree of each other.

Matt

 

[kunar]

your pinion flange and your output flange on your t-case need to be parallel. thats all that matters. get an angle finder (a cheap one should be less than $10) and check your output flange, then make your axle match.

 

[c_note]

done!!!! i just finished 10 minutes ago. i set it at 5.5 degrees and couldn't have been better. i just bled the brakes bu thtere still a bit soft. is my factory master cylinder the same as the explorer one?