lol he has zero rates to center it, if he moves it back he can loose them
no it doesn't. i don't get how you guys are all having the axle move sooo far forward. you aren't moving anything on the front side of the spring at all, the spring is still keeping the same length. and thats gonna determine your wheelbase. sure, the spring might be setup a little lower and this in turn might move the axle forward a little bit. i never noticed it really with the shackle flip other than this effect.but that moves the axle forward. so no, need to move the front one back.
Just finished the shackle flip on my 84 Bronco today. I have the Sterling 10.25" rear axle from the 88 F-350. USing my old Bronco springs, the axle was centered with the use of the 4" blocks from the F-350. After I took out the blocks, the axle was then 2" forward of center. I measured the center of the fender opening, and marked a line on a piece of tape, then ran a string with a weight to center the axle. SO, I moved the front hanger back two inches to center the axle, then bolted up the rear spring front hangers from the F-350. There is really only one spot to mount these on the Bronco frame due to clearance issues with the rear crossmember and bumper. I just got everything bolted up with Grade 8 hardware, and a thunderstorm moved in. For now, I have the leaf springs C-clamped to the axle, but am searching for some U-bolts. THe stock U-bolts from the F-350 are about 6 inches too long, and I don't want to re-use old U-bolts. Anyone know where to get these for the 10.25" rear that are about 7-8 inches long? Oh yeah, my pinion angle is greatly improved, and I don't have any blocks or shims under the springs at the moment. JSM84
X2I'm pretty sure he'd bend up anything for you...I just noticed 3-5/8 wasnt listed.
If you cant find anything local, give him a call.
Here's another option for ya Randy:Thanks for the link, derrick36!!! The F-350 u-bolts measure 3-5/8" inside, so I'll have to keep looking. JSM84
I failed to mention that those u-bolts are with free shipping. Ordered them Wed PM, still waiting on'em. I went ahead and put the wheels back on this afternoon to check the shackle angle. It was BAD!!! With the weight of the Bronco on the rear springs, the shackles were flat and sitting on the springs. (I'll load a few pics tomorrow). Plan B- move the front hangers back to their original location. That improved the shackle angle (45* now), but the axle is again about 1.5" back of center. My only option now is to use some zero rates with the offset pin. The pinion angle is excellent, just about 1-2* below the rear driveshaft. Oh well, JSM84