Hello all.I have a very solid old 89 4x4,but the body has seen much better days.I just bought a nice little 89 2wd with a tired engine,slipping tranny,and excellent body/interior.
I'm no stranger to swapping cabs,but I've never done it on this body style.
My question relates to the floorpan,is there a difference in the tranny hump,like the 73-87 trucks between 2 and 4wd?Or is the tranny hump the same and have a line made into it where the T-case shifter goes?

Also,is the harness to engage the front differential transferrable to the 2wd cab?If not,I can always go with a posi-lock setup.

Any help from someone with prior experiance is greatly apprecciated.I'm sure I can figure it out,but tips from the experianced are always a great deal of help.

I wish we were closer. I could use the chassis...

Hi There,
I have done the exact same thing you are going to do. The truck is going to be finished in a few weeks. Both cabs need to be gutted, swap out the drivers side floor sections. It is quite a bit of work, but worth it. You can got to chevytruckworld.com and look up ratchetman or look in the Connecticut forum under the thread named "progress on my '88 to '89".

Randy

Hey Fellas.
I've got the truck up and running,and wanted to share my experiance,maybe it will benefit someone.
The swap went absolutely perfect,which is very unusual for me,I always tend to hit nasty snags.All of my body parts interchanged perfectly,no alignment issues,nothing out of the ordinary.
I'm not sure what Ratchetman got into on the floorpan,but mine was stamped on the top of the tranny hump,and with some careful measuring,it was a simple matter of cutting a roughly 3x5" hole,and bolting the shifter in.I did not address the front end wiring,as in the locking in the front axle.I simply bought a posi- lock setup,which I highly reccomend to anyone.This truck has had 4 different locking silenoids over the years,and now I'm done replacing them.Installation is a snap,I'd never consider doing anything else now.I can't imagine ever needing it,but I also have 2Low as a bonus.
The only modification other than cutting a hole for the transfercase shifter,was that I had to lengthen the speedo wiring about 8",not too big of a deal.
All in all,it's been one of the smoothest projects I've ever taken on.
I hope this helps anyone who wants to attempt a similar project.I have done every bit of it myself,with only a chain hoist for special equipment,so I'd say any dummy can pull it off!

Thanks for letting us Know how this Worked out, Too many time's something like this get's posted & is never followed up with...........

Thanks, Rick