Formula Toy Advice FZJ80 Rear axle with OFFSET 3rd member

[FourBy4Toy]

Looking at doing a Formula Toy buggy, I already have a front FZJ80 elocker axle mounted in the 4runner chassis, I want the rear to match(1993-1997 FZJ80 -- elocker, full float, and disc brakes, and the same wms-wms to match the front) The advice I am looking for is... I am using mini truck drivetrain/frame.. which in turn means that my rear driveshaft will be centrally located, however the rear FZ-80 axle is offset(I have seen a lot of buggies that have the rear diff located at either the far left, or far right for ground clearance issues), so I would assume that with just a LITTLE offset that I wont have any crazy u-joint vibration/premature wear with speeds less than maybe 35 on a flat trail?, or are the guys that are running the crazy offset diffs running a special type of u-joint? I plan on running factory mini toy driveshafts/u-joints...

 

[Arya Ebrahimi]

I *think* the key is to maintain the pinion and output shafts parallel. A standard two u-joint driveshaft deals with vertical offset all day every day. So as long as you keep the shafts parallel the driveshaft doesn't care that it's offset vertically AND horizontally...

 

[FourBy4Toy]

Makes Sense....but this scenario would have both vertical, AND horizontal offset, I could offset that some by rotating the pinion angle up, but there would still be the horizontal offset, not sure if that would vibrate like crazy.

 

[Dusty]

my rear driveshaft is offset with a centered diff. both are paralell


my front diff is offset more than the front output and the front diff points the pinion at the tcase (just like you describe) i can do 80+ mph with this setup and no vibes. just have to try it and see

you could always run dual cv's. highangle driveline said i would need a dual cv for my front dshaft. they were wrong

 

[Jeromy]

I have no problems running the exact same setup you want to.

 

[Arya Ebrahimi]

So as long as you keep the shafts parallel the driveshaft doesn't care that it's offset vertically AND horizontally...

Makes Sense....but this scenario would have both vertical, AND horizontal offset, I could offset that some by rotating the pinion angle up, but there would still be the horizontal offset, not sure if that would vibrate like crazy.

I know they will be offset in two directions. It doesn't matter, just make sure the pinion and output shaft are parallel.