Prerunner 4x4 conversion

You gonna bore the cylinders? Kinda hard on a 2.7l since it's a bored out 2.4l haha.

 

Honestly I'm not sure, we'll see once I tear it down and see how bad it is.

 

Looks like maybe they can be bored. This is from the 96 manual I have:

 

Oh you can bore them. But not too much.

 

If anyone happens to see any of the required parts or donor vehicles that are close to my area (High Desert area Southern Ca.) please give me a heads up, the search is on.

 

I used car-part.com to find a majority of everything. It took me about six months to collect everything.

 

Right on thanks I will check it out. I appreciate all the help by the way, I'll update this thread every once in a while with progress made.

 

Ok so ive been looking around and it seems like it will be easier to find an add diff, how would I go about making that work if I went that route? I read that you can wire it up and can control it with a switch, what about the vacuum lines where would they hook up?

 

People would modify their ADD diff so it's always "locked" in conjunction with their manual hubs by means of a clamp.

This way, you enter 4x4 when you lock your manual hubs and shift your J shifter into 4H

 

You don’t need to hook up the actuator. You just lock the actuator in engaged with a hose clamp.

 

Thats it, nothing else would need to be done?

 

Nope. That’s it. If you’re using manual hubs with a J-Shift transfer case that is.

 

Does it matter if the transfer case comes off of a v6 or does it need to come off of a 4 cylinder?

 

Shouldn’t matter. Manual transmission v. Automatic transmission matters though. Manual is top shift, while automatic is forward shift.

I highly recommend you find a transmission already mounted to a transfer case. The transfer cases are also not labeled and it’s easy to mix them up.

 

Ok so I have been looking around and I have found a bunch of A340F trans out of 6 cylinder 4runners, I think my best bet is to grab one of them. Is the bell housing the only thing that needs to be swapped to make it work? Would I need to swap the torque converter as well? How can I know if it has the j shift transfercase without seeing it in person?

 

Ideally, you want a transmission+transfer case combo.

The stall is different from the 4runner and the Tacoma; that's as much as I remember when I was doing misc. research.

If you do pursue getting one from a 4runner, make sure it's not from a Limited.

 

What do you mean by stall?

 

Without getting too complicated, stall speed is a rating for certain torque converters. The A340F torque converter is 300-400 RPM off from the stall speed from the A340E torque converter.

My grave error was using my A340E TC instead of the A340F TC because since the stall speeds are different, the truck doesn’t shift right.

Rule of thumb is torque converters are matched. You must use the one that comes with the donor transmission.

 

You can tell it’s a J shift because the back of the transfer case won’t have a black actuator hanging off the back of it. Also it’s pretty obvious looking at the shifter.

J-Shift 4Runners are rather uncommon compared to push button transfer cases. The push button cases are way more common. You don’t want those.

You also can’t use Limited 4Runner cases because they’re AWD.

 

I see, good to know. So it would be fine to just swap the bell housing to make it work?