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About jkruss82

  • Rank
    Over Drive

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  • Location
    Central PA
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    Engineer for the best truck in the world

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  1. jkruss82

    T2090 Hose Question

  2. jkruss82

    18 speed gear split problems

    If its the splitter, its the top cover on the back box that possibly needs to have the air cylinder rebuilt (new o-rings, maybe new brass air fittings) and check the air lines and other fittings on top of the transmission.
  3. jkruss82

    Maxitorque ES wide range of models and speeds

    Unfortunately Australia tightened up their noise regulations and Mack dropped their manuals from being offered about 6 years ago. I think you may be able to special request one, but I would hate to know the cost. In the USA Mack sells mDrive, Allison, Eaton, and Mack T300. About 20% of trucks still have a stick, the other 80% do not and that number continues to grow.
  4. jkruss82

    Maxitorque ES wide range of models and speeds

    The Mack 6 speed is gone from production. It was nice and lightweight for a class 8 truck, but drive-ability and reliability not so great. Mack's manual transmission take rate is about 10% of new trucks. Mack has the most PTO options available and a 10 speeed multi-speed reverse (T310M) that is shiftable through 6 reverse gears. Otherwise Mack and Eaton match up pretty close with 9/10/13/18 speeds.
  5. jkruss82

    T2080 input shaft

    it may be for flywheel PTO New Picture.bmp
  6. jkruss82

    13 speed won't go to low range

    Sounds like it may need new seals and o-rings if the air lines are all still connected properly.
  7. jkruss82

    Eaton conversion

    Whats wrong with the Mack 13spd if you don't mind me asking? For the Eaton you can use either aluminum or cast iron bell housing with the correct clutch release. You will probably need a longer prop shaft as well.
  8. jkruss82

    Change pto bar Mack MR

    Do you mean shaft? Dig those swivel clips out with a flathead screwdriver and punch the pin through.
  9. jkruss82

    Transmission swap

    The pilot bearing floats in the flywheel, nothing holds the new ones without snap rings. Good idea to replace the pilot bearing, they tend to go bad from the clutch dust and such.
  10. jkruss82

    T310 knocking!

    Is this a new transmission or does it have a many miles? Sometimes a gear will have a bad spot and sound like a knocking during coast. If you have a T310 and its in low speed, the gear set directly behind the mainbox (in the rear box) is most likely the culprit of the knocking noise. That being said this noise may go away after the bad spot gets worn down, but that's only if this is a new or Reman new transmission.
  11. jkruss82

    Easy pedal clutch for MP8

    If your MP8 is rated at 1860 ft-lbs you'll need a VCT+ clutch rated at 1860 or higher. The Mack 9-spring will be getting a rating increase in April of 2017 to match the 1860 ft-lb engine rating but Eaton will not warranty the current 9-spring at 1860. your correct about the springs in the disc dampening the chatter and shock from the crankshaft.
  12. jkruss82

    MR road tractor

    nickname is the Plum
  13. jkruss82

    Eaton 13 speed

    Rear section countershaft gears are welded on the shaft . That would take some effort. Not sure how you could change around any other top two gears???
  14. jkruss82

    Rattle in 7th going up a hill

    If it sounds like its coming from the transmission then it may be the reverse gear set in the back box. In 7th and 8th the reverse gear set is spinning fast and is not loaded so it may sound like a lot of rattling.
  15. jkruss82

    Looking for a different transmission

    If the offered 6 speed is a T2060 then it has an air shifted hole gear. The ratio is 9.02:1 which is much deeper than your 5-speed with a 5.24:1. To install you will need to cut down a drive shaft because the transmission is about 8 inches longer and you will need a shift knob with toggle switch. If the 6 speed is a T306G, it will have a 1st gear ratio of 7.5:1. It would fit the same as your 5-speed and should be a simple swap out.

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