holdigr150

Jason - It looks like you have received some excellent responses to your questions. A couple of items that have not yet been covered might interest you. When purchasing a used 6-speed don't forget you will need the entire shifting arrangement original to that transmission. Avoid trying to convert transmissions from cab-overs to fit your conventional. Keep in mind your application when selecting the version you wish to purchase. The TRXL107 will have a low hole ratio of 14.10 and a first gear ration of 8.59 just like your 5-speed and the remaining forward gears will be the same as well. Four of the five reverse gears will be lower than the one reverse gear of the TRL1078 5-speed. This is a huge plus for off-road work. The TRXL1071 had (if memory serves me) a much lower "low hole" for mixer applications. These variations are identified by the stampings on the drivers side flat spot, along with the build number (11KBA....). The markings are X107 and X1071 for these six-speed versions and D107/D1070, T107/T1070 for ten and twelve speed direct / overdrive transmissions. Try to find a unit that has the same output yoke size as your existing setup so that all you need to do is shorten the drive-line, if not check to see if your old yoke will fit. I agree that it is difficult to hurt a triple counter-shaft Mack transmission. My 12-speed lost a counter-shaft bearing and almost ran out of oil, the only damage was a broken shift rail. I also had difficulty with spreading material and the rear mounted Mack PTO is the answer. My RS712LST had a Mack PTO but it was not in use. Even with the spreading issues, I never took the time to hook it up. The truck is now gone but I still have that PTO waiting for a new home. Holdigr

Personally, I have owned four hydraulic excavators but only one track loader, a Komatsu D57S-1. Most in my area would say they are useless, but they do have there place (in very specialized applications). This unit served me well with no major complaints considering the low investment necessary for a 33,000 pound, 130HP machine that filled a gap in my operation and would load a truck.