Seems like you will have to know if the 817 will work for you. Couple of loads a week within 20 miles from home is not working to me and I would go with the 817. Can allways drag start but not with the bigger auto or cats. If I was working hard then maybe yes 917 and if the tranny fails replace with 10 speed and just hope you don't need to replace anything else that cost big bucks. Converting something else to dump is work and the system on the 817 is a good one. Maybe look for and USMC 817 if you can find it. Cost wise once again the 817 lot of truck for the money street price or GL price.
I agree the truck would be more adding to the collection than pulling its weight. M915 is in sorta the same boat. I can make it pay for itself a little.
The biggest issue isn't initial cost its the recurring costs. I'm already paying annual registration and insurance costs on the tractor. While trailers cost me $25 a year.
Right now near as I can figure M817 and a dump trailer are about the same initial cost. The truck not only will have higher annual costs to use on the road but maintenance as well.
The big deciding factor is if it's possible to install a PTO on the M915A1 HT 745 Allison tranny. Right now it's looking feasible, I found a PTO for 500. However the tranny may not have the gear...
Just because the HT 745 came with the PTO option doesn't mean it was built with one...
The PTO doesn't entirely decide the fate, I can always use a remote power system for the trailer. However a M915A1 with a wet kit would be awesome for both a dump trailer or a RGN.
And yes this entire discussion is based on next years plans. After all I like to live by the 7 P's, Murphy sometimes has other plans.
Hey Jeremy, thanks for the reply, but I was referring to the M51 in general...not specifically the a1, a2, or plain M51. So, not to be a pain or anything, I ask the question again. I do not know enough about them to know any major helpful pros/cons between the M817 and the 51. I do know the M51a1 had the mack engine, and the a2 had the multi. in it.
It looks like you are making great progress with the dump trailer. Keep us updated.
Yes I realize that, and I wasn't trying to compare or even attempt to compare the M51 with the M817. My post really was just explaining why I left it out of the initial post. Combined with the rare nature M51's are becoming harder and harder to come by.
As far as I'm concerned the M51 is simply older and not available with the NTC-250.
Actually one of my modification desires is to re-power a 5 ton with a NTC-400, for no reason other than I think it would be cool...LOL