2wd to 4wd Conversion

talk to RST wyatt who ownes it was talking about making one to sale for the swaps . im not sure if he has yet tho

 

All of those things are different which is the reason to shorten the front section of he current driveshaft. I think it's about 13" that needs to be cut off then it will work.

 

Doesn't the rear section already have a slip joint?

 

no most 2wd dont have the slip in them . ive only seen the slips in the 2wd 4cyl ones and of cours 4wd

 

How's does the driveshaft deal with travel of the axle if it's pinned at the carrier bearing and doesn't have a slip joint?

 

not very well on the 2wds i blow out my bearing a few times lol

 

I know on the 2wd there is a slip yoke at the transmission. Does the driveshaft somehow move forward/backward in the carrier to utilize that slip yoke?

 

this is the bottom part of the 2wd drive shaft on the 2wd v6 no slip

 

if it does its not much maybe 1/2 to 1" of movement . like i said i blow mine out a few times before i swapped to 4wd

 

Well isn't that interesting. Even the front driveshaft has a slip joint and it doesn't even articulate.

 

i know thats whats messed up about it

 

currently I don't think there is a "kit" as people who convert don't always have the same setup. what you do need is the 4wd housing(Y-bracket) mount that secures the rear of trans/t-case to the crossmember...I think the last time I looked it up, its around 100 new, the actual crossmember is built around the existing frame mounts and where you set the height of the trans.

if you can find a 4wd crossmember, you'll have to notch the middle of it and drop the mounting area about halfway down, since the crossmember frame mounts are higher on 2wd

 

Yes, I am aware of what modifications are needed. Here is an example of a modified crossmember from @ajohnson build. I think he started with a 4wd crossmember but is this necessary? Does the 2WD transmission mount have the same crossmember bolt pattern as the 4WD? Can you just cut out the center section and ends of the 2WD crossmember and use rectangular steel?
ajohnson's 4wd tugboat peerunner

 

Yes, that's what rst did when they converted. Cut up the 2wd mount and used some 1x3 box tube to make it fit.

Another option I had a 4wd mount and cut it then lowered it till it was the height we wanted

 

Yours looks almost just like what I did.

 

I did not know this was an option as well. Did you also have to move the crossmember forward an inch to account for the difference in where the brackets are welded on yhe frame? Do you have any other photos?

 

Front Range Offroad has a crossmember listed on their website. http://frontrangeoffroadfab.com/tacoma-and-4runner-t-case-crossmember/

 

Sub'd

 

If anyone is looking for a front diff I have one with 12k miles, still has factory gear oil in it. Comes with cv axles and complete hub assemblies as well.