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    1. Introduction Forum

      Welcome to the New BigMackTrucks.com Forums! Take a minute to create a new post here and introduce yourself. Tell us a little about yourself and your passion for old iron!

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    2. Truck Stories

      This is a forum for you to tell us about your truck's history! Every old truck has some type of story behind it and we would love to hear about it! Be sure to include photos if possible...

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  2. General Discussions

    1. Antique and Classic Mack Trucks General Discussion

      This is where you can talk about anything related to antique or classic trucks! If your topic is something specific, try to use the correct forum below.

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    2. Modern Mack Truck General Discussion

      This forum is for general discussions about modern Mack Trucks! Granite, Vision, Rawhide, Pinnacle...etc. Specific topics can be posted in the forums below.

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    3. Mack Dealer & Corporate Forum

      This forum is for Mack Dealers and Mack Corporate personnel only. If you are a Mack Dealer, or Mack Employee, PM the forum moderator below with your name and dealer code and you will be moved to the Dealer Group and be able to participate in this forum.

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    4. Mack Truck Q & A

      This forum is for pressing questions concerning Mack Trucks...emergency maintenance questions, pre-purchase questions, etc...answers can be rated by users and the higest rated answers will show first!

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    5. Mack on the Silver Screen

      This forum is for discussing various TV shows, commercials, music videos, songs and movies that had Mack Trucks in them!

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    6. Mack Scale Model and Diecast Corner

      All discussions about Mack scale model building and diecast models go here!

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  3. Specific Topic Forums for Antique & Modern Trucks

    1. Engine and Transmission

      This forum is for engine and transmission related topics

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    2. Driveline and Suspension

      This forum is for driveline, carrier, front and rear axle, steering and suspension topics

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    3. Air Systems and Brakes

      This forum is for Air System and Brake related topics

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    4. Electrical, Electronics and Lighting

      This forum is for electrical, lighting and mobile electronics topics

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    5. Exterior, Cab, Accessories and Detailing

      This forum is for topics about exterior, cab, paint, trim, bumpers, emblems, visors and also topics about keeping that truck looking its best!

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    6. Fire Apparatus

      Forum for discussions about Fire trucks and specialized fire fighting equipment.

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  4. Odds and Ends

    1. Odds and Ends

      This forum is for non-truck related topics. Talk about interesting web sites, current events, tell jokes, post funny photos...etc.

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    2. Trucking News

      News and information from the entire trucking industry

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    3. Other Truck Makes

      This is the place to show off all your other trucks that are not Macks. They can be antique or modern trucks.

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    4. Tractors and Equipment

      This forum is for you to talk about Farm Tractors and other misc. equipment such as trailers, dozers etc.

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  5. Market Place

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    3. Feedback Forum

      Please leave feedback for other members you have done business with here. This will help members trust (or not trust) other members. Please be professional with your remarks...good or bad.

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    4. Transportation Board

      This forum is for posting and finding transportation opportunities for your antique hobby trucks and parts around the country. Please keep rates reasonable when posting a route...

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    5. Watt's Truck Center   (232,789 visits to this link)

      Click here to visit the Watt's Truck Center Home Page featuring The B-Model Store and tons of other parts for Antique and Classic Mack Trucks including R-Models, Super-Liners, DM's and all current models!

    6. Product Announcements & Group Buys

      This is the forum where we will post new product announcements and Group Buy Information from the B-Model Store! You can discuss them and/or ask any questions you may have here.

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  6. Shows and Events

    1. Truck Shows and Events

      This forum is for topics about truck shows and other events of interest.

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  7. Site Related

    1. Site Related Topics

      This forum is for BMT related comments, suggestions or problems.

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    2. BMT Wiki Support Topics

      This forum will hold the support topics created from the Wiki System.

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    3. Test Forum

      This is the place to practice posting photos or testing code. Topics may be removed at any time...

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  8. Club Forums

    1. Mack Trucks Memorabilia Collectors Club Topics

      This club page is for all Mack Memorabilia discussions

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  • Latest Posts

    • Joey Mack
      What cha' Cookin' ?

      By Joey Mack · Posted

      I forgot to add that those are chunks of chicken in there, picked off the boiled trimmings.  I also skim the fat off the top when it cools, and use it to fry some of my meals, like burritos  for example..  
    • Joey Mack
      help identifying air dryer

      By Joey Mack · Posted

      The AD-6 is a spin on. I use my Cat oil filter tool to replace them.  To me, very easy to maintain..  all good..
    • Geoff Weeks
      help identifying air dryer

      By Geoff Weeks · Posted

      I doubt the AD-2 is the problem. I have one that is still going fine. I'd put my money into replacing hoses before I touched the air drier. When I scrap the Fleetstar with the AD-2, it is going on my K-7, only drier that will fit behind the cab under the body. I took off all newer driers (AD-9 and Rockwell/Meritor) and installed AD-4's. Even converted some AD-9's into AD-4's with the addition of a plate and base. The older driers are a pain to service compared to a "spin on" or single bolt (AD-9) but will out last them hands down.  If you take care of the air system, so it is not popping off all the time, an air drier will go years perhaps decades without being serviced (yes, I know decades is not recommended). When you start to see moisture out of the wet tank, then look at the air drier, if the rest of the system is up to snuff.  
    • Joey Mack
      help identifying air dryer

      By Joey Mack · Posted

      GW ?  What do you think about ditching that old one and installing either an AD-6 or an ADIP model. I prefer the AD-6..
    • RS Disposal
      help identifying air dryer

      By RS Disposal · Posted

      lately I haven't been getting anything out of the purge valve when the system reaches 120.  I agree that the line between compressor and dryer should be replaced.  It is definitely on the list of things to do with this truck. Right now I am also fight a fuel problem which I am hoping is old/bad fuel lines. The truck was never maintained as it should of been when my dad was operating the business and then sat for 20 yrs before I opted to put it back into service
    • Joey Mack
      What cha' Cookin' ?

      By Joey Mack · Posted

      So....  Heres a twist. something my wife and I have been doing for years.  When I trim chicken parts, I make stock.. Then add in frozen pee's, carrots, green beans, broccoli, and cauliflower, or combinations of them. this time its pee's and carrots...  We mix this into our Pup's dry food.....  They go nut's over it.. 
    • Geoff Weeks
      help identifying air dryer

      By Geoff Weeks · Posted

      The vast majority of the time when a vehicle has trouble "building" air, the problem is it is having trouble holding on to the air that has been compressed into the system. A system that has a true "building air" problem, will hold the air just fine after the cut-out pressure is reached, it will hold at 120 psi with the compressor unloaded for a long time. Much more common is for the system to rapidly loose pressure, start compressing again, then loose it once the compressor unloads. Check for air leaking out of the purge valve on the bottom of the drier when the compressor is active. You should get a burst of air followed by a slow release of air out the purge valve when the compressor unloads.  A leaky air line between compressor and drier will act the same. A leak after the drier will cause rapid cycling of the compressor.
    • RS Disposal
      help identifying air dryer

      By RS Disposal · Posted

      i am working on replacing most of the lines one by one on this truck being it is a 1979.  I know rubber breaks down just from age (not alot of miles but 47 yrs old) and this truck has seen alot of road salt.  The problem I am having is that once it got cold the truck had a hard time building air.  I replaced the governor which seemed to help a bit.  Air pump was replaced about 5 or 6 years ago. Being a garbage truck it does alot of start and stopping.

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    • mowerman

      mowerman  »  1Macktrk

      Hey, welcome my board and have a swinging time… bob
      · 0 replies
    • Lmackattack

      Lmackattack

      HO HO HO

      · 0 replies
    • the_IRFmack

      the_IRFmack

      - I double sticked and old Mack to feed a stone crusher in 12 and 14 hour shifts six days a week all summer to pay for my chemistry degree.
      - Because I wanted to sleep for 1 min and 26 seconds each trip out of the quarry at the crusher's vibratory dump box at the top the quarry during those 12 hour shifts, I bulled the old MACK up long 20 degree and sometimes steeper grades.
      - THAT meant that I split each gear 1, 2, 3 after coming out of boggy low.
      - All I did was rev to the right engine note, reach my left arm down through the steering wheel to hold the curve I was on or hold the truck's path steady; slip out of 1st, throw the 2nd stick high into low and slip into 2nd gear... rev to the right engine pitch, slip to high.
      - Then when it was time, reach through the wheel again, slip high to low and 2nd to 3rd {if I correctly remember 60 years ago}.
      - The Igneous rocks were too heavy and the grade too steep for me to ever get into 3rd high.
      - The crusher team were the mechanics for everything and had replaced the old Mack's tranny gears because they had been ground too much. - - They later told me they didn't believe me when I told them I slipped all my shifts because the gears showed no wear.
      - Except for start and stop; Not once did I use the clutch because that made my leg ache too much after an hour or so.
      - I slipped all my standard 4 speed shift vehicles all my life...just to be with the music of the engine and car or truck.
      · 0 replies
    • the_IRFmack

      the_IRFmack

      - I hardly ever change disc pads or brake shoes because I always slipped my gears downshifting...
      _ I learned that because the synchro rings got shot on my 1968 Volvo 122S 2-Door 4-Speed with an electric overdrive because I stupidly speed shifted and ruined them. https://bringatrailer.com/listing/1968-volvo-122s-17/
      - [Note: That Volvo's original owner was a Canadian Submarine Captain who rallied it and that is why it had Volvo's unique electric overdrive.]
       
      - {I clear coated over the bone white with Cadillac Firemist Green and painted the grills Black because they were dented...gosh it was stunning.}

      · 0 replies
    • Richie s

      Richie s

      My phone number is 845 475 7176 if anyone can help with parts
      · 0 replies

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