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I don't drive my 85' M1008 as much as I used to. Only a handful of times each month. The 86 M1008 aka the 💩box gets driven at least twice a week to run errands. On that note I looked at a Vortech 350 to swap into the 86' M1008. The ole 6.2 is losing more compression and it needs to be replaced...

Regardless of whatever you do, a 255 85r16 will easily fit the stock wheels. Depending on which brand of mud tire, they are all minimum 33in tall and 10in wide. I run that size on my 86 M1008 and my 79' K20 flatbed truck. I luv em. Great on the highway and killer traction off road when they are...

^^what he said..

Order a master cylinder for a 1984 M1009 And avoid parts from Autozone and Advanced Auto parts... they sell the cheap low quality stuff Napa and O'Reilly has decent parts

No repairs lol, but both of mine got put to work on Monday. The 85' M1008 in the background had tractor towing duty while the 86' M1008 had junk hauling duty

Considering I have mismatching body panels on my 86 M1008, I thought about painting the wheels red or orange lol

I'll go back to a single alternator and battery on a 350.... and the truck has already been converted to 12 volt. I'll just need the brackets for the existing AC system

Let's revive an old thread lol.. The 6.2 in my 86 M1008 has seen better days. It's losing compression fast... not sure how much longer it'll last. As of now I'm leaning towards a TBI or a Vortec L31 with a Holley Sniper. Just depends on the cost... I use the 86 M1008 quite often, so I need to...

Only 4k?🙄

The OEM balancers tend to come apart when the rubber dries out. When that happens, your crankshaft goes with it... Yes it should be covered in the TM's

I put the Dorman oem style balancers on both of my 6.2's. They work just fine...

If you plan on keeping the 6.2 diesel, swap a new harmonic balancer on it ASAP. Your existing unit may look okay, but don't trust a 35yr old balancer with dried out rubber. That is a known weak spot in these engines

I have the SM465 in my 79' K20 with a 406sbc. If I'm towing my tractor, I have to wind it up to 3500-4000rpm in 1st and 2nd gear to get it going. If it's normal driving I shift at 2500-3000 rpm. I wouldn't recommend that with the 6.2 diesel *the turbo 400 and 4:56 gears in the CUCV trucks is a...

I would recommend sticking with the turbo 400. The ole 6.2 diesel ain't gonna like that 1st to 2nd gear change....

With a 37in tall tire yes. Anything smaller may be stretching it...

I would have already changed both of my M1008's to 4:10 if it didn't require a carrier change

The existing carriers in a M1008 is for 4:30 and numerically higher gears

If you have an existing carrier for 4:10 and numerically lower, thick cut gears are available for a numerically higher gear ratio

If you decide to go that route, you will have to change the carriers. And that is quite expensive at the moment...

I suggest a no on that. A 6.2 diesel is not exactly a power house engine and 2:73 gears would be too tall. Especially on a long hill. 3:73 gears with a 32x11x15 or 33x10x15 tire is a good combo. I ran 33x10.5x15 tires on a 74 K10 with 3:73 gears. 70mph was not an issue.. My current 79 K20 has...