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Fastduramax

Puppy Poster
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About Fastduramax

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    Truck Nut

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    Peru MA USA

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    Male

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  1. JOJO !!! Kmon my friend is any amount of HP ever really "enough" !!! Kinda like "to much HP" That phrase is totally off the charts !
  2. Upon much research I have come down to these 2 hub numbers, HR605K obsolete new (non ABS) And the new number HR819K can someone confirm if these are the correct hubs for my truck... 88 RD 688S 18 front, maybe 20 I never figured out how to distinguish an 18 from a 20... Thanks !
  3. Thanks guys and thanks for the thumbs up Mackone... She's a good ole puppy she works daily in the summer and parked in the winter and gets well loved... Just dropped $4800 clams into the rear suspension jeeeesh !
  4. Have to agree with OldRed I just did mine and gained that 3" right back (44 rears) That said I have had 3 Camelback Macks and have never seen the springs "sag" I have had a broken pack leaf but never a sag.... I have had my 88 for 15 years and never changed a rear spring and are believed to be the original springs believe it or not ! Anyway if your insulators are shot again try this... Atro urethane bottoms and OEM rubber tops, urethane rides harsher but lasts 3X longer and using the rubber tops takes the shock out if your ride and wheel hop in certain situations and the tops support no weight
  5. Thanks guys both good ideas and I did cut a piece of black commercial grade black carpet a while back and it currently ain't too pretty... Problem with the upholstery shop thing is my rubber floor does not make a good stencil anymore and a new one is very pricy if you have priced one lately... The beauty of the "kit", I bought one from Mack like 20 years ago lol, the carpet is fully bound and you get the nice piece for the firewall, just my OCD....
  6. Search the Stengel Bros website, they have a company that makes super nice complete kits, not sure for DM but the list was long last I looked I'll be doing my RD this summer....
  7. Not certain but pretty sure, no audible leaks and they get changed quite often because I cant seem to get a compressor from Mack (3rd) that does not push oil through the system....
  8. Thanks Joe It is letting off the brake pedal giving me the problem with the delay issue, FYI the QR valves made NO difference so my problem is obviously further upstream ugh ! I have a treadle valve in stock because mine developed a tendency to "feedback" air especially when it's cold out, not sure to start there, bit of a pain in the ass to change especially if unnecessary or try to figure out if its a faulty relay ? Also found what I think is a relay on a crossmember on the driver side just above the 12 speed, noticed it while changing the 12 speed splitter relay valves... That required some
  9. Still looking for a full RD carpet kit, I assume Superliner would work also, I throw this out there once a year or so with no luck lol !
  10. Still looking for a full RD carpet kit, I assume Superliner would work also, I throw this out there once a year or so with no luck lol !
  11. Hey Mackone let me know what you got new or reman and from who and most importantly if it pushes oil through your system, I'm on my third compressor right from Mack and it pushes oil like a Saudi oil field ugh !!! I gave up, I just chase down each valve and maxi can the oil ruins... Ironically just today replaced my heater/AC control panel and both piston accuators the oil has ruined !
  12. My 88 RD688S had no QRV on either rear axle, strange my 88 from years ago had them go figure ? Anyway I was getting an annoying slow release issue lately so I ordered 2 assuming it was a QRV issue to discover I didn't have any lol ! Well I installed them anyway thinking it can't hurt, I ran them to the service side airline of my maxi cans can someone tell me is this is correct ? Thanks, Todd.
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