DieselDog5.9 Posted Sunday at 12:20 AM Share Posted Sunday at 12:20 AM I have an 03 Mack CV713 Granite with Chalmers rear suspension, with no Capacity door tag. I got the build sheet from Mack listing a 14k front axle and 38k rears. I was told that I have a 46k suspension by the Mack parts dealer and I have bought 46k suspension parts. So... Am I 38k capacity or 46k capacity? Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/ Share on other sites More sharing options...
Joey Mack Posted Sunday at 12:20 PM Share Posted Sunday at 12:20 PM Any pictures of the rear suspension? Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580226 Share on other sites More sharing options...
mechohaulic Posted Sunday at 11:12 PM Share Posted Sunday at 11:12 PM the capacity in reality is up to the operator. if you are buying 46k parts and are the driver . haul under the common sense rule. look back at pictures of old AC Macks single axles hauling 100K loads. Paperwork wise in to days world !!! that's another story. Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580236 Share on other sites More sharing options...
mrsmackpaul Posted yesterday at 07:24 AM Share Posted yesterday at 07:24 AM Can you go over 38000 legally in most U.S. states ? Paul Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580247 Share on other sites More sharing options...
Geoff Weeks Posted yesterday at 02:02 PM Share Posted yesterday at 02:02 PM 6 hours ago, mrsmackpaul said: Can you go over 38000 legally in most U.S. states ? Paul Paul, 34K on a tandem is country wide legal, but each state can set limits in that state over that, and of course if you do heavy haul there is permitting for much higher weights. Also off road use. 38-40K is std rating now a days on anything for drives, dumpers often go 46K or higher. I'm sure you know, but higher cap housing use thicker wall and bigger bearings, so are an advantage regardless of weight carried in the long run. Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580257 Share on other sites More sharing options...
mrsmackpaul Posted 23 hours ago Share Posted 23 hours ago I don't think many trucks these days run anywhere near legal load limits in Australia Gone are the days of people running 50% or more over loaded 44's are pretty much the standard down here, has been that way for 40 years or more Paul 2 Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580261 Share on other sites More sharing options...
kt_Engineer Posted 3 hours ago Share Posted 3 hours ago On 8/2/2025 at 8:20 PM, DieselDog5.9 said: I have an 03 Mack CV713 Granite with Chalmers rear suspension, with no Capacity door tag. I got the build sheet from Mack listing a 14k front axle and 38k rears. I was told that I have a 46k suspension by the Mack parts dealer and I have bought 46k suspension parts. So... Am I 38k capacity or 46k capacity? You are always rated at lowest rating of the axle housing GAWR, Suspension and tire rating. In this case you are good upto 38k lbs GAWR (assuming your tires are rated to 38k lbs too - which should not be a problem IMO). This a 11mm axle housing and cannot be loaded to 46k lbs. Quote Link to comment https://www.bigmacktrucks.com/topic/75827-46k-chalmers-suspension-with-38-mack-rears/#findComment-580276 Share on other sites More sharing options...
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