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03' Big Red

Bulldog
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About 03' Big Red

  • Birthday September 24

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  • Location
    Pennsylvania

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  • My Truck
    1998 RD688SX Tri Axle Dump & 2003 RD686S Tri Axle dump
  • Interests
    Jesus,my wife and family and old trucks.
  • Gender
    Male

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  1. I disagree on the Allison HD4560 being fragile the are much more forgiving than a manual trans and can handle the horsepower without a issue
  2. Recently we installed injectors, rocker arms and shafts, camshaft,lifters and unit pumps trucks is 100% stock including exhaust manifold, turbo and injectors and it runs fabulous!! if you down shift at 1300 it’ll stay in the power band and up shifting at 1750-1800 keeps things moving smoothly. It will pull down to 1200 and keep on going we max out at 73280 lb here in PA for a Tri Axle dump
  3. On the 2003 the cause of “oil leak” was actually a over zealous national oil change shop that pumped way to muc grease into the throw out bearing the 98 was leaking at air compressor, oil filter mount and looks like the rear main seal was damaged when it was installed
  4. It is a automatic in the 98 Flywheel housings on both trucks went to machine shop to be squared up. not sure about cracks
  5. I have two R models a 98 & 03 Both have oil leaks at the back of the engine AFTER the transmission has been out, rear structure resurfaced, new rear main seal and oil pans resealed. Any insight to what the problem may be?
  6. That was Hempt Bros some sloped nose had the Cummins M11 there is a single axle dump set up like that in my area. I had a 88 Giant Tri axle dump with a L10 Cummins, 7LL trans and 6:17 axle ratio. Not much would stop it but it was a slow truck. sure wish I still had it.
  7. Can the CRD112/113 be made to be full locking? often the power divider isn’t enough
  8. I have a 2003 RD686S with the AMI 370, can I put that software in a 1998 ECM RD688SX the 2003 has a Eaton the 1998 has a Allison, would that be a issue ?
  9. i have 4-24 inch Dayton 6 spoke hubs (2 are ABS) for Mack 58,000 lb rear,all appear to be in good condition P/N 8QJ530 2-24 inch Dayton 6 spoke w/ ABS for Mack 18,000lb steer, one is good,one shows wear due to rim slipping on hub PN FZ196 message me for info
  10. i am i need if a complete wiring diagram for a 1998 Mack rd 688 SX, also equipped with a Allison 4560. my dash lights started flashing on and off then have smoke coming from the turn signal flasher unit...until i turn off the parking lights, then all is well. my 03' also has a melted socket for the flasher, seems to me this may be a common issue. thanks in advance for any help. Dennis
  11. What would the proper offset rim be to run a 425 22.5 steer on the front of a 98 RD 688SX ? the truck has Dayton 6 spoke hubs
  12. UPDATE... the 58,000 lb rides almost as nice as the 44000 lb in my 03 RD but much nicer with a load and running of road ! who woulda thought !!
  13. Problem solved, we had to replace the VECM for other reasons and that solved the speedometer issue as well as the intermittent failure of the right turn signal.
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