so sounds like the sweet spot for milage is around 2200 rpm? i know that is a over simplification but just trying to do the math in my head.

 

I'd say the sweet spot is between 2k-2.5k rpm, but the om617 is one rev happy diesel so there's lots of room for error, I think the rev limit is 5k.

 

Some big updates: I got tired of my factory worn out(inverted) front leaf springs riding the bump stops so I installed some 3" lift leafs up front with 6" shackles/2" blocks out back, I also got started on my flatbed, and I'm installing some different seats as well. I will post some better pics very soon!

little teaser:

 

Your truck is looking great. I have an 85 extra cab as well, but am wanting to do the OM617 on my 86 runner. Currently have just been waiting for a Mercedes to pop up looking for a new home at the right price. When you did your syncros, it that something a shade tree machanic can do? I can do motors but have never done trannys other then clutchs,swaps and such. Subscribed to your thread. Great build.

 

veryu nice, just out of ciurosity whats up with your hood? its like the hinges arnt bolted down

 

Thanks for the comments! I downloaded the factory service manual when I tore my tranny down mainly to help keep track of everything, no real special tools to get to the syncros other than a good set of snap ring pliers. now if you decide to change some bearings out you definitely need a shop press.
I spaced the hinged part of my hood up so my engine runs cooler. It works great but does look weird.

 

I still have lots of work to do but so far:

 

Awesome truck.

 

Things coming along very nicely