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David

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Everything posted by David

  1. David
    The issue is not the width but the offset. Measure the distance between the lip in the inside of the wheel and the edge of the wheel that goes toward the other wheel on duels. If it's the same as your old wheels, your spacers and clamps should work. The extra width is added toward the center of the truck on the inside wheel and toward the outside on the outside wheel.
  2. David
    John, Thanks for posting the pictures. Do you use any of the "Wobble Wheels"? Tell Frank I still have a set of 1400R x24's for them.
  3. David
    "E9's in the CH" Did Mack ever build the CH with an E9 ?
  4. David
    John, How far out of square do the 4 axles on that trailer go when you make a turn loaded? Seems like that would real hard on the trailer and tires.
  5. David
    That bulldog looks like it's 10 feet from the steering wheel!
  6. David
    This problem can be solved with a Mack rear mounted PTO. You do not need to have the Main in gear to run the PTO.
  7. David
    "So basically I was just wondering if they had similar frames" I have a 1984 Mack "Sales Engineering Publication" on frames that shows the DM800 and the RD800 (with 299" or shorter wheelbase) using the same frame (10.62 x 3.25 x .312). It also shows the RD800 (with 300" or longer wheelbase) using the same frame (10.75 x 3.25 x .375) as the RM600 and DMM600. The big difference between the two is the second one has a lower "belly" from the back of the cab to the rear. It changes from 10.75" high to 13.38".
  8. David
    John, Thanks for posting the pictures of the "World's Nicest DM800". Really enjoyed seeing that truck in Macungie last summer.
  9. David
    If you use this truck on road, the Big Cam may not have the low end torque to climb the steps of a 5 speed (a 6 sp with lo lo). Also, if you run the PTO off the trans., you will need the Mack PTO that runs through the countershaft in order match PTO speed with travel speed.
  10. David
    Run a piece of soft copper tubing along each side of the pipe making a u turn at the dryer and run your return heater hose through it.
  11. David
    http://cgi.ebay.com/ebaymotors/1960-Mack-N-model_W0QQitemZ370315492052QQcmdZViewItemQQptZCommercial_Trucks?hash=item563885fad4 Here's one for ya!
  12. David
    The 10 hole Hub and Stud Piloted wheels are all 11 1/4 inch bolt pattern. The only exception I know of is the 13 1/4 inch bolt pattern on the 1400x24 used on the military 10 ton 6x6. They also have a larger center hole to clear the 65k hubs.
  13. David
    Remember if you go with the Fuller you will need the mounts on the bell housing.
  14. David
    Herb's suggestion (12 sp) is the best. But that trans is getting real hard to find. I've changed two of my 6 sp directs to T2090 9 sp with .71 overdrive. They work great with 4.42 rears. Run 75 opened up on the interstates. Had to resize the driveshafts, change the pto, and pump direction. This trans may be too fast with 4.11 rears. The Roadranger 8LL (.78 or .86 overdrive) may be a good choice. But then it won't be all Mack! Many have had ring and pinion problems with 4.11 rears in an on/off road applications. Just something to think about.
  15. David
    And less displacement than a Cummins!
  16. David

    Mack!

    David replied to Mackguy's topic in Introduction Forum

    Welcome. You'll find a lot of good guys here. Hope you have thick skin.
  17. David
    Some of the "hubcaps" have a threaded side plug. You can rotate the wheel so this plug is on the top and fill over the top of the rubber plug.
  18. David
    Welcome. Where are you in upstate NY ?
  19. David
    "a yellow motor" Dave, sometimes your just too easy on these guys.
  20. David
    Another thing that made Budds more popular is outboard mounted brake drums.
  21. David
    I was there. Wish I had known other members were going.
  22. David
    They use a cab leveling valve. It's mounted next to the bags. Look at engine pictures of trucks for sale and you'll see the supports and mounts.
  23. David
    If you are installing it on a truck that didn't have air ride you will need to change the radiator supports from the rods that hook to the cowl to the tube type that go down to the frame. The cab should have the hood rollers on it. You may need to change the plates on the hood that rest on the rollers.
  24. David

    Winterizing?

    David replied to tniss's topic in Fire Apparatus

    We use a little RV water system antifreze (the pink stuff) in our presure washer pumps. I would think that would work in fire trucks also.
  25. David
    Another thing that has added to the switch over the last 20 years is the change in weight laws. There are very few places left where you can run 75,000 lbs on 3 axles. The buds would not hold up under those loads. With laws reducing weight per axle and more axles added, the strength of the Daytons is no longer needed and the budds (esp. alum.)have become more popular.

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