![]() I thought this to be a good idea with all the added power and 54 year old running gear that has only ever known about 1/3 this amount of power I believe it may be the only chance it has of living for long. One of the reasons I have decided to use this transmission is smoother transfer of torque. ![]() Do to limited foot space and my huge feet the first idea that I abandon was cutting the floor boards and building a new transmission tunnel. At first I was going to raise the cab to gain the clearance needed for this transmission however now I am leaning towards the idea of notching the front cross member to clear the front pulley building new motor and transmission mounts and moving the engine and transmission down as a unit. There are two ears on the sides of this transmission that are not needed and were there for attachment points as it moved down the assembly line so I cut them off. The clearance problems that I have run in to are at the back of the bell housing to mid transmission. This transmission mounts much like the originals from the sides of the bell housing it even came with mounts that bolt to the side of the transmission and bring the mounting point down to the stock mounts on the cross member. I do know that it came from a Chevy powered medium duty truck or bus as it came with the SAE-2 to Chevy bell housing adapter and it dose have a PTO gear behind the cover. I am not sure what this 540 is out of I found it on Craig’s List. Send me your model numbers and I'll track it down for you and tell you what you need, OK? A single gear PTO is a sliding gear that is engaged on the transmission only as needed. That means that the driven gear inside the PTO is always running and the output shaft gear engages off of it. ![]() Lastly is the fact that even if it did fit it wouldn't protrude far enough away from the tranny to attach anything. Fluids allison transmission recommends that customers use an allison approved tes 295 automatic transmission. Next is the issue with lubrication that I originally pointed out. There are no single gear units that fit older Allisons. I once had a customer who broke the entire side out of a Fuller RR because his PTO had a higher torque rating than the transmission did so guess which one failed.? This is always a problem with twin countershaft transmissions but back to the Allison.įirst of all a PTO for medium duty truck with a CH465 is likely but not necessarily to be a single gear unit. There are tremendous differences in PTO's across the board and it isn't just whether they will bolt up and engage either. They may be but please don't assume that. WHOA.I didn't indicate that they were interchangeable.
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