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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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      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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    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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      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   (223,450 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

    • The Heinz
      Macungie 2025

      By The Heinz · Posted

      I have GOT to plan to make it next year, I originally planned to go this year, but other things came up. Would love to see all those trucks and meet some of ya'll in person. 
    • Bullheaded
      Mack 80,000 Pound Rears

      By Bullheaded · Posted

      Don't forget, that is Canadian dollars, but it's still a lot, LOL
    • mattb73lt
      Macungie 2025

      By mattb73lt · Posted

      I'm bummed I missed you and a bunch of people!! Between talking and looking around the show, then the weather on Saturday, time went quickly. We showed up Thursday in the early afternoon. I thought that was early. Things actually start opening up and people arrive on Wednesday, now. Seems to get earlier every year. I think most people can only get Saturday to go as Sunday is Father's Day. If I go again next year I'll stay later through Saturday and maybe come back Sunday morning. The other thing I may do is put my name and phone number on the window of the truck so people can call me to meet up if I'm not there or meet at their truck which I did a few times Friday. Saturday just sucked with the rain and really put a damper on the festivities.
    • The Heinz
      AI 427 manifold and turbo swap

      By The Heinz · Posted

      I don't know anyone that has the ability to do that, or at least one that wouldn't overcharge the snot out of your wallet, in NC. There's a diesel shop in Knoxville, TN that might be able to help you if you're willing to go that route. They're called City Diesel, and I've been told very good things about them and what they're able to do. 
    • johnbor
      Mack E7 and fuller trans fit Mack E6 ?

      By johnbor · Posted

      I have a Mack E6 motor with a Mack 6 Speed 2 stick transmission. I am going to pull off the Mack transmission an replace it with a Fuller 7 speed transmission that came off a Mack E7 motor. I know the bolt holes line up but will it fit the input shaft on the transmission and is the bell housing the same length or anything else . The E6 motor had a 14” clutch and the E7 had a 15” clutch ?
    • kt_Engineer
      Mack 80,000 Pound Rears

      By kt_Engineer · Posted

      It is proprietary Mack axle based on CRD95/96 carrier series. It is identical to S652 axle but with upgraded GAWR capacity to 85,000 lbs (tandem; 42,500 lbs/axle). The new Link/Raydan 85,000 lbs suspension is matched with this axle.
    • Geoff Weeks
      New Mack Anthem

      By Geoff Weeks · Posted

      What hasn't changed a bit from the early days, is the number of axles to haul the weight and therefore the number of brakes to slow the load. 140K, 170K at 70MPH with the same brakes that were used when the speed was 1/2 that is not an improvement.  More power will help get the load up the grade, but takes a good hand to get it back down the other side. I once pulled Butte, MT westbound and was one gear up from bottom, I could have used more power! only had a 315 HP at 1800 RPM gov limit, if that.  Now we have big power, but still the same 7-8 axles and brakes under the same load.  More power and the temptation to grab more gears and speed when pulling a grade instead of selecting a gear and riding it to the top, Much easier to do damage shifting under that kind of load on a grade, then taking more time and pulling to the top a bit slower.
    • Bullheaded
      New Mack Anthem

      By Bullheaded · Posted

      Thanks for the info. I just don't like the new "shared with Volvo stuff" As you say, a lot of it has to do with fuel mileage and emissions regulations, but they just don't even look nice. No shape or styling, all flat body panels. And they don't look or feel like trucks any more. Too automotive, way too much electronics and gadgets. But I guess that's what the new generation wants. Just glad I don't have to buy or drive them any more for a living. And they talk about distracted driving, yet all these new auto's and trucks have to have 12 inch tv screens in the middle of the dash that you can scroll through pages of info.....instead of nice simple gauges. The Rawhide was the last nice Mack cab and interior for me.

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    • Joey Mack

      Joey Mack

      https://www.ebay.com/itm/335977440629?_skw=mack+e-tech+engine+book&itmmeta=01JWA20VWGWWKW84MXA7SPSVRS&hash=item4e39d0e575:g:fUEAAOSw~n9ncrwC&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1dw4WewTekYgqfyNRuEV27xatvWtbt3pHWRVGQe1%2FuiJa1RXu7clyGRSUOQsiJw2vkNZsCj2oCM0P%2FFfzicknbJ1jIfvRTaeEwAuEcAvnENHMOemQfy4z6CxAOg99H0CnBQ9VW5EziMtlSRPRkvE81SM8Z%2FUbIxgXyjlUqWNlPuqLRMliIAbmsBP3PTti0ZA8IFxHf9n2peaIf5BC4NH3pXsXiboMiV%2FMHZZWAulEsSdv3ivPWd6jwPksv6HdtaD5SBBgzXSe4hxqy9vF2g39rCKjthzr7%2FBmBw7UN0Qu2Jbw%3D%3D|tkp%3ABk9SR7C-g8LiZQ
      Stoneandsteel... You need this book!
      · 0 replies
    • down4glamis

      down4glamis  »  Mike6024

      Hey Mike! Sorry to bug ya on here, I just bought a pallet of wine in Napa and think you may have done the same. I bought the blue label and it said you won the yellow label. I was wondering if you would be up for trading a few cases so we arent stuck with so many of just 1 type of wine?
      · 0 replies
    • StoneandSteel

      StoneandSteel  »  Joey Mack

      Quick question on the advice you gave me about my ai400 cam/lifter replacement kit. 
      would you have a rough estimate on the time it would take to do the actual replacement with kit? I have everything removed I’m just ready to open up the front of the engine and get to the cam. Thanks 
      · 15 replies
    • TurdFerguson

      TurdFerguson

      Looking for jake adjustment screws for E6 300 2 valve Jacobs number is 2034 Mack number is 4559-2034. I would really like 12 but would take six.
      · 0 replies
    • jefferydixonsr

      jefferydixonsr  »  h67st

      Hi I have a 1969 685t r model mack  I'm looking for the front axle spin on hub oil caps if someone has some that they want to sale or know where I can get some I know the old b model had the same thing that thread overfront hub or spock if you can help me out thanks 
      · 2 replies

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