Try finding an FMTV oil cooler set-up off a wreck or parts truck if you can find one. I used them on a repower (ordered new) I did for the NGB a couple years back and they work SWEET!
I think I've found one that'll work even better. It's a oil cooler from a nascar race car. -12 fittings already on it. I'll have to go check the fittings on the 931. Hopefully it'll be just a matter of making two more hoses and using a cooler like that. It's radiator sized!
Looks like that radiator will work great as far as the size goes! The frame extensions for the winch are a great idea and should work perfect!!
Can't wait to see it with the cab on.....
I was bored and since I need to stay up tonight and sleep during the day tomorrow, I went ahead and took the radiator to the car wash and cleaned it out. Glad I did, there was a bunch of crud in it. Tomorrow I'll hit it with a coat of flat black. I know you kinda offered up using a civy radiator. But I'm kinda going for as much "off the shelf" parts as possible to help speed things along. The real fab work will be the cab mounts, front bumper (I'm going to use a Buffalo bumper to base off of though), steering, wiring, and air plumbing.
I'm kinda looking at the dash of the MK48 and looking at the M931. I'm pretty tempted to just unhook everything in the MK48 cab for the most part (except for lighting) and extend the 931's harness into the cab. Also thinking about just cleaning up my 931 gauges (minus tach and speedo) and transferring them into the MK48 dash. I know it'll be a bit of work to extend the harness, but if I disconnect everything one and a time and label it. I should be able to simply cut the harness one wire at a time, solder in a predetermined length of wire, heat shrink, rinse, repeat.
Things I've gotta figure out/current working ideas:
Transmission shifter - I'm thinking I can just use the MK48 shifter. I need to take apart both shifters and check the ends. I've found that Summit Racing has universal shift cables up to 12ft in length. I think that'll be plenty long enough.
Parking brake - I think there's enough room in the cab to mount the parking brake lever. I can move the associated hoses up there as well I guess. Although the MK48 cab has a parking brake. Haven't decided the route to take on that one.
Air brakes/air system - I'm at a loss on what to do here honestly. I guess while I'm doing the harness transplant. I could just have everything exposed and reverse engineer everything one part at a time.
Transfer case - I'm honestly not sure how I'll tackle this one. Linkages won't work simply because of the drivetrain being in the way. A single cable wont work either I don't believe. Perhaps another set of those universal shifter cables in a pull-pull configuration. I do know that I'll be disabling the airlock safety crap the 939 series uses to prevent shifting while moving. (I know not to, I'm just going after K.I.S.S.)
Fuel tank - I'm honestly probably going to leave the stock tank setup. I'm however considering a pair of 3 way electromechanical valves. I can leave the plumbing all in place where it is, but swap the manual valve out for an "electronic" setup. I can swap the standard tank selector switch for a DPDT switch and have the same switch change gauge readings and activate the valves as needed.
Steering - I'm going to take a page from Soni's book and duplicate his setup.
Batteries - I've decided I'll just give up my passenger side toolbox and use it to store two batteries in. Living in the south, it never gets cold enough to need 4 batteries.
ROPS - Again, I'm going to take Soni's lead on this as well. The doghouse will be a ROPS setup as well.
Left overs - My main goal as of right now is to get the truck converted and functional over form. I will have to address the spare tire rack but it'll remain in place as is for now. They'll also be a "hole" where the stock cab is/will have been. I haven't decided what I want to do with that real estate yet. I'd love to have a knuckleboom there, but I'd have to wait and luck up on one. I know where a large winch is though, that is more likely to end up there. And I do have a wrecker already, but a knuckleboom would be awesome to load/unload the M871.