twin stick?
if that's the case, then i might look into it

 

got another question. involving the drive line work. if you were to go with duals and re do the drive lines. would you have to extend them again to add 4 to 5 inch lift?

Just read through this thread on Pirate http://www.pirate4x4.com/forum/showthread.php?t=109103 and they have convinced me to run duals instead of 4.7's but i eventually want a lift too. but i don't want to pay for drive lines twice.

 

Maybe, maybe not. If you used long travel slip yokes, they may work with the added lift, stock slip yokes probably not. Might only need to extend the lines an inch or so with that much lift, so a drive shaft spacer would be an option, if needed (a lot less expensive that lengthening a shaft or two):
- http://www.4crawler.com/4x4/ForSale/...ftSpacer.shtml

But, if you had the shafts built from scratch with long travel slip yokes and maybe cheated them to a bit on the long side, they may work after the lift. However, in my case, I found that I ended up having to go with a rear CV shaft with dual cases and ~4" lift due to the shorter rear shaft and steeper angle. So you might want to consider doing that as well. I think Marlin recommends it nowadays on SWB rigs.

 

i have just added a dual case to my 86 4runner and i am about to get my shafts modified, i was wondering if it was nessary to add joints to the shafts when modifing them? my 4x4 buddy swears up and down that i need to add a cardon joint to each shaft even though i am only shorting and lengthing by about 6-8 inches.

can i simply lengthen mine or do i need to intergrate some joints into the shaft?

 

Your stock 86 DC joint won't work without modification as it doesn't have enough degrees of freedom. Front will need length and longer splines.

Rear will need to be shortened and a DC will help with road manners but not required.

:wabbit2:

 

Wabbit, to help out irab88 and myself actually and since it's somewhat related to where irab88 took this thread,

Noone makes "premade" front/rear shafts for dual cases right? If not, I wonder why since it's so common of a mod.

 

Tons of places make dshafts, but you are still going to have to measure as every truck is different depending on setup.

Just took dshafts for 82 to my dshaft guy.
Front gets heavy wall tube, 10" spline kit and lengthened to 19.75" flange to flange
Rear gets heavy wall tube and lengthened to 58.25" flange to flange.
It has single case and 5" lift.

Some will be close, but you still want to measure and get it right.

:wabbit2:

 

X2 on the above. No need to add joints to the shaft, you still have one at each end, assuming they are 1-piece shafts to begin with. I initially had the stock shafts in my '85 shortened/lengthened with dual cases, but after a few years fighting rear drive shaft vibes (due to the rather steep ~12-15 degree angle), eventually went to to a CV (double cardan) joint on the rear shaft, tipping the rear pinion flange upwards for proper alignment:
- http://www.4crawler.com/4x4/CheapTri...line-101.shtml