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Wildman304steven · 05-07-2016, 11:29 PM

As far as building a class 8 truck goes, I had a single axle with the 855 cummins 9 speed and I really thought about stretching it and using it. But it was harder to get in and out of and the cab did not have any room. So anyway I decided to go mdt for better or worse and I don't know if it will satisfy me or not but I do like to drive it and with the crew cab it has tons of room. The biggest disappointment so far is that you can't get a dealer to program any more hp and it has the big allison 5 speed that will or should handle anything that I'm going to put on it and from what I understand it actually has a sixth gear that a dealer can turn on that would make the gearing but the dealers that I've talked to will not vary from factory specs. As far as the breaking capacity this truck should more than have that covered but a Jake would be nice but I'll settle for a exhaust brake.

05-07-2016, 11:29 PM	#3
Wildman304steven Junior Member Join Date: Apr 2016 Location: Princeton Posts: 7	Auxiliary transmissions As far as building a class 8 truck goes, I had a single axle with the 855 cummins 9 speed and I really thought about stretching it and using it. But it was harder to get in and out of and the cab did not have any room. So anyway I decided to go mdt for better or worse and I don't know if it will satisfy me or not but I do like to drive it and with the crew cab it has tons of room. The biggest disappointment so far is that you can't get a dealer to program any more hp and it has the big allison 5 speed that will or should handle anything that I'm going to put on it and from what I understand it actually has a sixth gear that a dealer can turn on that would make the gearing but the dealers that I've talked to will not vary from factory specs. As far as the breaking capacity this truck should more than have that covered but a Jake would be nice but I'll settle for a exhaust brake.