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The factory fuel filter base on my 85 M1008 started leaking and at the time I didn't know they could be rebuilt. So it was replaced with a duramax set up. The d'max set up works just fine, but the the truck doesn't start as fast vs the factory set up. I did keep the factory set up. May have to...

Was the injection pump mechanical or electronic?

180 hp is impressive without the turbo. What were the torque numbers? Is that a 6.2 or 6.5?

Can't say I've ever seen a 16yr old thread revived lol

Same here.. the beauty of driving an M1008 is relaxing and enjoying the ride instead of hurry up and wait

My 86 M1008 developed a buzzing noise last year. I knew it coming from somewhere around the rear drive shaft. Turns out the bushing inside the tail end of the transfer case needed to be replaced

The easy way to check the skid plate is to put your foot on the plate while the truck is running and parked. If the buzzing noise stops, you found your problem

Just go back to Utah lol

I had the balancers on both M1008 trucks replaced with OEM units from Dorman. They work just fine..

Check the skid plate below the fuel tank. It'll buzz like crazy if it gets loose

I had my 27MT rebuilt by a reputable shop and still had issues with it. I finally gave up and had the shop that rebuilt my 27MT order a brand new 28Mt. It doesn't turn the engine over as fast as the 27MT, but it works every time..

The engine is still between the frame rails of a GMC 3500 box truck...

I'm looking at a 6.5 turbo to stuff into my 86 M1008 and I have a few questions. The engine needs a new #8 piston which is an easy fix. The present piston has a tiny hole in it. This was a heat related issue on the #8 cylinder which the 6.5 turbo was known for. How do I fix the coolant flow...

Then someone prior either swapped in a Dana 60 from a m1028 or had a limited slip installed

All M1008 trucks had an open front differential.

Off Road Design part #GU37001 *it's designed for about a minimum 2-2.5in lift. Not sure if it'll work on a K5 frame with stock springs

Sway quick disconnect and the rear winch FINALLY full operational on the 85 M1008... and trimmed the front fenders just a lil bit, so no more tire rub.

Could be your hydro boost unit... The hydro boost unit on my 86 M1008 has a slight leak and needs to be replaced

This is how it was set up on my m1008 when I bought it. Just replaced the compressor this week..