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Run the Allison, when it breaks fix it.

I did not measure the housing because the original will fit with some modifitcations.

I found only two difference in the 250 and the BC400. The big cam rear cam bearing journal is larger in diameter then the 250. This effects the location of one of the bell housing bolts. So to use the original 250 bell housing you must enlarge the one hole in the bell housing which is no big...

No matter how much I measured I needed to remove and replace the motor at least 4 times. Best way is to leave the trannie out until the final install. Make sure you find the exact location of the center of the crank snout. That will help you determine its location with the new motor mount...

Had time this morning to mount the 1600 tires and wheels. What an improvement in looks and ability in mud and rough terrain. Just need to get a hard top on it. Steve

The body lift is rather easy to do. I used steel plate/washers and longer bolts to lift the cab and hood at the mounting points an inch. Take a look at my first photos in the post. That cross member with the rubber bumpers in front of the radiator is bolted to the frame. You need to raise it...

There is enough room but the biggest fit issue was the extra height with the jake brakes fitting under the cab cowl on number 6. I ended up giving the cab and hood a 1 inch body lift to clear the valve covers. I was quoted 4k to do the swap just in labor. Depending on the price of the motor...

I had to torch cut out the top 4 inches of the cross member. Then I welded in a thick piece of steel in this cut out so the commercial truck style mount could sit on the member. This was the hardest part of the swap because the orientation of the tail shaft of the transmission must be in the...

Hey Matt. That is a FASS fuel filter that does remove air and filters down to 4 micron. The best thing about it is it provides the pt pump with 12 psi all the time so start up is very fast. I have run a lot of miles with lift pumps on other trucks and the benefits are very noticeable. The...

Had the chance to drive it this morning. Being that the original 250 was blown this project was unknown. But after letting it shift through the gears, all seems good. Just the right amount of power. I had Pittsburg Power rebuild and increase the cummins pt pump by 25%. That made a big difference...