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I’m replacing the seats so I have cut out all the old sheet metal that was there. I’m going to have the bases open so you can slide things under them for storage and I didn’t want the seats hinged or removable.

I’m not a fan of body lifts but I see why they’re used in these vehicles so often. I’m building one now but not just cheap spacers. I’m making the four corners from scratch 1.5” taller. Not just for bigger tires but when Govplanet picked it up it squashed the body where the forks were a...

He has them but it expressly says does not work as a conversion from 24V to 12V for some reason. Ugh

SO I got my M1123 in. I'm mechanically inclined but I haven't done much automotive work. My plan is to do something like the Predator ATVR-6 (internal cage, not exo). I'm going to Line-X inside and paint the outside satin sheen, build a cage, new bumpers, new gauges, all new wiring, brakes...

I don't know, I'm trying to get away from the military look a little and the wheels BR makes that I like don't come in any 8 lug patterns. Method makes a bunch of them but if you upsize to a 39 or 40 inch tire they're all 13.50 wide and needs a 10 inch wheel but Method mostly makes 8 inch or so...

Well the difference is 2.5" of backspacing and .5" wider so they'll stick out 3" further than the ones you have now on each side

Interested also

I'm in the same position as you. It seems no one makes the same size as factory. Some people use method wheels to but it's a standard bolt pattern from other vehicles so you just have to understand and match up the numbers as best you can. Method sells them too but the backspacing isn't that...

I'm confused. When I googled NP242 it says selectable 2 and 4 WD but I thought HMMwvs were all time all wheel drive which is the duty of the transfer case so which is correct?

I have an M1123 so I think it comes with a 4L80? Looks to be in rough shape. Would a 6L80 bolt right into the same spot and also if I put a 6.2 LS in there can the transmission stay where it is and I mount the motor and build motor mounts to it or does the whole combo need to move around?

Thanks so much, that’s great information.

Would you mind sharing the information you got about not using one out of a GM vehicle?

Just got the vehicle this week so in cleanup phase. Was going to make Youtube channel to hep people but I think I'll just document on here. Will do a body lift so I can start the bumpers and cage then work on motor stuff. Trying to decide whether to buy a full wrecked vehicle or source all...

Thanks so much guys. Wolfer on Ebay sells halfshafts cheap and the description lists them as American made and better than AM Generals. Are they any good? What kind of reputatiopn for durability do they have? Thanks

I read the M1123 is the heavy duty version of the M998 so I would think it would be 12.1 parts but i think it has 10.3 parts. I'm trying to buy halfshafts, rotors, calipers etc but not sure which ones to get. Serial number about 217000

I'm doing an LS Swap now too and have a lot of questions. Maybe we can keep this thread going and keep each other informed.

Great! Thank you guys so much. This site is a great resource.

I'm the new owner of an M1123 and I'd like to get a shop service manual, the complete one, and the only thing I've been able to find online downloadable are short documents about one particular item or process. Does anyone know where I can get the whole shop manual? I'm starting a full frame...

I'm buying a Govplanet HMMWV and looking at engine swaps. Naturally the Duramax seems like the best option but the conversion kits from three different suppliers run from 10,000 to 15,000 with out the motor/tranny etc. I think a good option would be a Chevy Crate 454 or 502. It comes in a kit...

I was looking at AVA X doors and it was more like $9,600.00 to 12,000.00 a set for the doors with inner liners and electric windows so you all must be talking about something I haven't seen yet.