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One reason I like the 8LL is the three revers gear ratio choices (six in all) to be able to rock the rig back and forth as needed. Again I haven't used one of these transmissions and don't know the "feel" of a 21,000 lb rig and what power/ratio makes the ideal scenario for throwing mud off your...

SIMP Thanks again on the reply. Looking for info on failure mode on the "eating" parts. Was this in low range out in the mud or pulling your heavy loads in high T-case range but lower gears on your 7155? Was this on the intermediate shaft between the Trans to T-case or the T-case to the rear...

This is the big cam 400 at 3200 lbs vs the nhc 250 at ??? lbs? Is anyone here making a motor mount kit to ease the pain? If this goes into a M813 or M923 is there some hood modifications needed?

Hello all! I haven't been able to locate any info on the specification for the Rockwell 5 ton input torque rating. Looking at engine torque to transmission gearing to transfer case gearing and the end torque that could be placed onto one axle input. Anyone know this? I know they are incredibly...

Cool! Thanks SIMP! OK I made it back with some measurements that I did take rapidly on the way with the family to the movies so dont sell the house they are exact but they should be close enough for our estimation here :) Measuerment made from the stock M923A2: Rear driveshaft length 31" from...

SIMP, you are correct again on the 30000 unit and if I used it a different trans w a .7ish OD would be mandatory. The only reason I am considering it at all is if it is smaller shaft to shaft to eliminate loss of ground clearance and moving the bed around. I would rather add an overdrive...

SIMP, you are correct in all of these points LOL and YES absolutely I overthink everything LOL! It looks like you too are a tinkerer of all things so I feel at home here, and thanks for the 34" detail. Still mixing the parts in my mind. I like the smaller military units and the 916/920 are...

Has this ever been done? All of us metal heads here has anyone made this mode to see if it actually will work?

I have been looking for one but haven't seen any for sale here in SS and any that are for sale on IRONPLANET are beat to death or are crazy expensive... more than all the mods I can think of on a M923. I am looking for an EMP proof unit too and from what I see the new motor in these MTVRs and...

Are the frame widths between the MTVR and the 900 series close or the same? Has anyone here swapped the independent tandem axles from the MTVR onto the 900 series? I am looking at this for several reasons axle ratio, locker, 7ton vs 5 ton, better CTIS???, rear steering???, space to run chains...

Hello, I am Jeff, I am an aspiring future owner of a kickin-it M923/925/927A2. The only thing about this rig that bugs me is the T-1138 case is touted as being a easy pencil to break. I am expecting to turn up the smoke a bit and maybe injectors but nothing too crazy on the 8.3. Just enough...

WOW lots of wrenching! Love the pics and project! Love the BOX too! Questions for me a bit of a nubie still sorting out what I am going to buy and mod...the short shaft between your trans and T-case is similar to one simp5782 did for his swap... with the added power and gears are you thinking...

Did someone die? Is this the end of a good book with the last chapters ripped out! Was so enjoying this read. 813 with 400+ horses maybe new trans to handle the torque was sooooo delicious. There is an 813 for sale in my area but I dont want the 250 in it. Looking for options.

I am looking at a M927 right now and the lockers are right up the ally if I get it. I would be buying 3. If anyone out there has added an extra axle making the M927 into an 8x8 I would be interested in 4. I am new to this forum and dont know if the order has been done already and someone...