Topic: Early or late model IFS box for crossover steering

[jmac80]

Hi all-

Some of you may have seen my rookie saga in failing to mod a driveshaft to work in my 80.  Since I am also wanting to have suspention and high steer, I figured I should take care of that first as axle may be slightly moved/drop angle may change slightly between my old Rough Country lift and new (probably) OME suspension.  Basically, I don't want to spend $500 on a shaft that is useless after new suspension.

So, I need a box for the high steer.  I know there are two types of IFS box.  There is a yard down the street from me that will pull one w/ power that is in a 90 4Runner....I believe that would be the new style with the longer input shaft.  Which is preferred?  They want $100 for it...sounds about right.  That plus rebuild kit and I'm at around $200.  Also, who do ya'll buy the kits from?

BTW - looking for the 4" minimal lift to support high steer, if that matters.

[OVRAROK]

iirc, the older boxes 86-88 have a larger bearing on the input shaft, a stronger unit, however the newer box has a higher line pressure per fsm, either way, I would try to buy power steering pump and box as a pair. if the box isn't leaking, unless your going to tap for hydro assist, I would leave it alone. I think the newer style has a bleeder valve on box too.

[OVRAROK]

the later style box also has a quicker turn ratio I think

[jmac80 [OP]]

the later style box also has a quicker turn ratio I think

I have seen this stated elsewhere.  Thanks for the info.

So any opinion on preferred set up from one to the other?

[OVRAROK]

well....., I'm running a early non tapped box with 3rz stock pump at the current moment, however I'm gather parts for late model box, tc style pump w/ hydro assist. I tapped the box and rebuilt it, just need 1 ram mount, and a pulley,cooler and a reservoir

[H8PVMNT]

Be sure to mock everything up before you mount your box.  I have my kid's box mounted to where the stock style pitman arm hits the springs and the flat one hits the frame.  Could have been easily avoided.

[spoolnaround]

PS hoses interchangeable?

[OOPS]

Not all late boxes came with the bleeder, they only did that for a few years. What years, heck I do not know, my 90 had it!!