Got me a gas 1990 w250 will a 92 diesel wiring harness work going to use the body on my truck what problem am I going to find going from gas to diesel

 

Are you planning just a body swap or will it be an engine swap? Also what trans is behind the diesel ? And what's behind the gas motor?

 

I already have the drive train done 98 12valve g56 transmission and 205

the gas truck is a auto
Frame has been waiting on a body

 

That's a nice looking donor truck...Congrats!!

Being that your donor truck is a 4wd...unless the fender emblems are lying. It should have the large tranny hump because of the transfer case and shifter. So it should be basically a direct swap onto your awaiting frame. The NV5600 might require a little floor pan massaging...but I'm only guessing.

As for wiring...the 92 wiring system should be a direct swap, but since you have a P-Pump motor you might have a few systems that are not in the 92 Cummins harness. Only thing that might need attention, might be the main firewall wiring harness plug on the 92, might be different then the 90? So you may have to modify and/or alter the hole a little?

Good luck with the swap...keep us posted on the updates.

 

Also if you are using hydro clutch reinforce the firewall where the master has to go ..if not over time the master will rip the spot welds apart

 

I just made a mess of myself

 

Yeah, I had to go for a cold shower to. My Gawd that is a sweet sight, clean and all

Mike

 

I am loving the look of this project.
The donor truck looks nice, clean and straight!

As far as the comment about clutch hydraulics.
If you use the factory hydro bracket that bolts to the steering column, and you will not need too reinforce the firewall.

 

Was the bracket on all straight drive trucks

 

The bracket is on all manual 1st gen Dodge truck with the clutch hydros.
The earlier '72-'87 or so, use clutch linkage to get the clutch fork to move.

The proper bracket is held on to the steering column by four bolts and nuts.

 

Ok thanks I will get one

 

Nice. gotta get back on mine.

 

I didn't have a Bracket and mine ripped ...oh well now I know

 

The firewall will not hold up to the pressure applied to the firewall by the clutch pedal / hydros.

The later year 1st gens, even the auto cabs, have the holes drilled into the steering column.
On my '85 crew cabs, I had too drill them in.

 

Information about small things like firewall brace helps when you're putting a truck together thanks for the info from everyone