lookin at a 91 dually and the interior in it needs to be replaced and was curious if anyone has switched out a 91 dash to a 96 to 99 dash and if there was any complications doing it i would think it would go right in bein they are the same truck do i need to swith the harness when doing this and are all the heat and ac controls work the same way. any insight you guy have or links would be greatly appreciated

so im assuming the 91 dually is the newer body version not the square ? if so, you may be onto something. it may not be to bad of a swap. i cant say from experience . any pics

Your hardest part is going to be wiring up the new gauges to work properly

ya its the newer body not the boxed but i dont have pics of the truck i am still thinkin it over on buyin the truck just tryin to see what obstacles i am gonna come into doing this.

here is the add on the truck the guy is sellin i wanna say its a good starting poin on a truck but it needs full interior and full paint and i honestly dont see dumpin that kind of casj into the truck on paint it looks great in the pic but the guy that owned it in cali did a half assed job on paint didnt pull anything off or prep surface right so paint is cracking and peeling all over the truck

http://chicago.craigslist.org/nwi/cto/2520210463.html

Big f'in job to do it 100% right, for so many reasons. A lot of the trim pieces are different, too. Steering column support (spot welded in) needs to be swapped out. Column is different. A pillar trim on passenger side has holes for grab handle, need to hack bracket off donor truck and weld onto your A pillar. Then there's the wiring.........

I've done this job (complete 100% interior swap) and wish I'd did something different, but I figured it would be the "easy" way to swap in the newer engine, too, that way I could just use un-hacked original harnesses. That part worked great. All the crap to put the newer interior in and do it right... blah.

Richard