Is it possible to run rears up front with the budbuilt banana shackles and just use a driveshaft spacer?
Thanks

 

bump bump

 

a little more information would be helpful.....

 

Or get a long travel DS from Downey.

 

I just checked those shackles out, couldn't the front DS compensate for how little forward they would move with these shackles and the stock front mount?

 

http://www.budbuilt.com/new/shackles.html
Has anyone run RUF with the stock driveshaft and a spacer?
I plan on doing this to an 85 4runner

 

http://www.pirate4x4.com/forum/showthread.php?t=265669

Everything you need to know is here.

 

I initially ran my rear springs with only 2" longer than stock front spring shackles on my '85:
- http://www.4crawler.com/4x4/4R_suspe...II.shtml#Front

You could lengthen the front shaft with a spacer, however, the larger issue is that with the added travel (droop) of the rear springs, you'll likely pull the stick slip yoke apart unless you run limit straps. You need something with 6"-7" of slip up front with the rear springs.

 

Hey 4crawler, how did you mod your front driveshaft for use with RUF?

 

I had a shop rebuild the stock shaft and lengthen it and add a long travel slip yoke to it. All off the shelf parts in it.

 

Thanks.
How much should I expect to pay to lengthen and long travel my Driveshaft?

 

I've generally paid around $300 with a useable core shaft. Highangledriveline is one place to look or check for a local driveline shop. Lengthening cost varies as it depends on how long you need the shaft to be. To lengthen, you generally cut off all the tube and re-tube with new material, so adding 2" doesn't mean you only buy 2" of new tubing, you might be buying 20" or whatever length the shaft needs to be. Or do a square tube shaft:
- http://simbur.com/toyota4runner/drive_shafts.htm

 

Has anyone run a square driveshaft on a daily driver?
How bad is it?

 

Up front, you likely would have your front hubs unlocked and t-case in 2H, so makes no difference what kind of front shaft you have as it will just be sitting there.

 

Right on.
Thanks again 4crawler

 

Keep is mind that if you use your 4x4 during the winter (IE: driving to a ski resort) at more than 20 mph or so square driveshafts have a tendency to vibrate like crazy. Part of the expense of having a Drive shaft shop do the work is that they (should) balance the shaft.

 

Is there anyway of balancing a square tube driveshaft?

 

Sure, probably need to take it to a drive line shop and have them spin it up in their balancing lathe and weld on balancing weights, assuming they would be willing to do that.

 

the hard part about balancing the square shaft is the inaccurate tollerance in the slip caused the drive shaft's geometry to change as the drive shaft spins. so unless you can get thet thing really close tolerances balancing wont do anything

 

not always the case... i have a square front drive shaft. it vibrates a very little bit between 45-55mph and then smooths out again by 60. when i bent my rear drive line and had to drive it home in front wheel drive it was smooth sailing even at 70mph. my only complaint about it is that if you have the hubs locked but not in 4wd, or your in 4lo and dont have the hubs locked, it makes a clanking noise. other than that no problems.