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terry

Pedigreed Bulldog
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Everything posted by terry

  1. terry
    Can't help on the numbers, but i do remember R model macks in the mid and later 60's with 318 detroits.
  2. terry
    I can't imagine what a 6-71 would do to a one ton front end!
  3. terry
    They are a real easy engine to adjust the valves while running, and the maxidyne converted i believe is maxidyne liners with the heads scored for the fire rings. terry
  4. terry
  5. terry
    I do believe the tip turbine went to 315 horsepower. Terry
  6. terry
    Best tranny mack ever made! Terry
  7. terry
    686 Would be a 285 with a 5 or 6 spd, a 690 would be a 300 or350 with a 9 spd mack or fuller. Terry
  8. terry
    Are the injector lines the same?
  9. terry
    That is a bargain for that 12 spd. Best trans. mack ever built! Terry
  10. terry
    When you take them tank straps off, be sure to check tank it self for rust under the straps, It usually gets paper thin there. If so, take some thin strap and weld to tank where the tank strap wraps at. Will save you from trouble later. Terry
  11. terry
    Have to agree with the early 237 idea, terry
  12. terry
    Yes any 72 series with a 0 at the end is a double overdrive, either a TRT or a TRQ. Terry
  13. terry
    No 0 is a single overdrive in the back box, all triplex and quads are overdrive in the back box, A 0 like in a TRQ7220 is overdrive in the front, so there is your double overdrive. terry
  14. terry
    Try Manders diesel in Lakeville Minnesota, they parts out lots of macks. Terry
  15. terry
    I always thought the "adjustable" part was to keep moving the bottom thrust bearing upward as it wears to keep the axle beam from dragging on the spindle. terry
  16. terry
    Look at the engine pics. the frame is not tall enough for a DM, it is a U model. Terry
  17. terry
    You need to find a TRT1070 12 spd. They are about 12% overdrive, I had one in a DM with 4.17 rears, would run 65 mph at about 1600 rpms. terry
  18. terry
    Manders just outside of Minneapolis used to have a ton of mack cabs. terry
  19. terry
    With that mileage on the trans and engine with good servicing should last a real long time. terry
  20. terry
    Check the gasket around the vent in the roof. They will leak with age. terry
  21. terry
    you will split it open like a melon! Terry
  22. terry
    As Glen stated above don't beat in on the inside use the outside edge, you should also get a injector sleeve reamer to true everything up after it is in. terry
  23. terry
    I bet somebody already has put a diesel in it, look at that exhaust stack with that little muffler. terry
  24. terry
    I ran one for alot of years, never had a problem to speak of, just don't push it to hard. Terry
  25. terry
    A big block engine already mated to an automatic would be the best route to go. Terry

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