91ToyTrck

will the 3rds from a 4runner fit into the axles of a pickup front and rear? I found a great deal but want to make sure that I can swap them in and out with the ones that are in my truck. It's a quick way to get some gearing and wouldn't mind throwing in a Lockrite in the rear as well.

Elton

should work just fine pretty sure the 4cly thirds are different than the v6 ones

91ToyTrck

I guess I was worried about taking the front from a 4runner that doesn't have manual hubs if anything would be different?

Bill

There is a little more work involved to swap an ADD diff(ie no manual hubs) into a truck w/o ADD(manual hubs).

The diff itself is the same, the difference is the driverside "stub shaft". The ADD 4runner has a vacuum assembly on the shaft, that you don't have on your pickup doesn't have. It will physically fit, but you won't be able to engage 4wd.

You need to unbolt the ADD shaft(3 bolts) and pull the whole side off. Then do the same on your stock diff, and just swap the shafts. Not a complicated process, but does require a slide hammer and some muscle.

The rear will fir no problem

91ToyTrck

I just need to purchase the front assembly and drivers side axle that runs off of the assembly. I guess that makes sense to me. Do you have to hook up anything extra? or maybe by-pass somethingg in order for everything to work properly? I just want to have all the facts before purrchasing both front and rear.

Bill

Nope, the advantage of the non-ADD system(ie came with manual hubs) is that it's super simple. All the wiring is in/on the t-case, so nothing else to hook up.

I pulled my diff out a while ago, and it really is just the couple of bolts, no wires or vacuum lines to worry about.

As for buying more stuff: if you are buying the complete IFS front diff assembly, and you still have a complete diff in your truck, that's all you need. You can just swap the parts off your current diff onto the new one.

91ToyTrck

Your talking about swaping outall the parts ... ie the insides from the 4runner ad installing them into thee pickup assembly correct? I'm a little confused. I get this way over tthese message boards sometimes. Please try and bare with me to help me understand.

91ToyTrck

Would a 4cyl truck be the same as my truck? I have a friend selling his truck and might bee able to get his 4.56s from him. Is there any differences in the 4cyl to the V6 that would cause a problem?

4Crawler

iTrader: (3)

The 3rd will swap out, no problem. There are internal differences in the 4- and 6-cly diffs/gears but externally they are the same. They fit the same hole in the axle housing, they have the same splines for the axles and probably the same bolt pattern on the pinion flange (if not re-drill or swap flanges).

Bill

the upper part is the complete non-ADD IFS front diff. Notice on the long side it is a straight tube

The lower chunk is the ADD shaft/flange. You would need to unbolt this part from the diff and bolt on your stock non-ADD shaft.