I have not found much on this.I found 1 post on a Toyota dual transmission . Has any of you tried  this with manual tran`s . Got a stock sammy with a bad T case . Got T90 (Jeep) with a D20 T case .  I have all the parts I need to do this,I think .I`m going to get the drive shaft cut and have some splines installed  in the shaft . I`m using the short drive shaft off the tranny as my adaptor for the T90 tranny. I`m going to install a bearing on this for support.Would like some input . THANKS



http://community.webshots.com/user/zukezilla

the problem I came up with is it's not going to give you any more reduction it's going to act like an overdrive

http://www.suzuki-samurai.nl/volvo/volvo-eng.html

I was just going to mention that. 

The main issue you will run into is space and alignment.  If you can get your transmissions lined up perfectly you can skip putting the extra u-joint into between them and save yourself some space.  Then it's just a matter of making sure there is enough room to put it in and still have your drive shaft be able to reach your rear axle.

the problem I came up with is it's not going to give you any more reduction it's going to act like an overdrive

I think I was wrong, my thoughts were clouded from the cold medaction

Ryan

Correct me if I'm wrong:
5spd in front, 4spd in rear, 2 gears in tcase

40 forward gears, 18 reverse gears

Put both transmissions in reverse, rig would still move forward!

definite food for thought!

This is some of the parts I have to work with. We installed the clutch center .    We are going to cut the throw out bearing shaft and add the bearing to the pilot shaft using the throw shaft for support.  A bearing housing will be mounted to this.




http://community.webshots.com/user/zukezilla

Here what we came up with .

Do you think this will work ?