Bullheaded Posted yesterday at 11:09 AM Share Posted yesterday at 11:09 AM I saw a news release recently that Mack still offers and 80,000 pound non-planetary rear for the Granite. It claimed it is a Mack axle. Are they really made by Volvo Mack or is it a rebranded Meritor? Reason I ask is the mine I work at now just got a couple new C500 Kenworth's and they have 80,000 Meritor's. I didn't know Meritor made anything that big that's not a planetary. Quote Link to comment https://www.bigmacktrucks.com/topic/75663-mack-80000-pound-rears/ Share on other sites More sharing options...
mechohaulic Posted 15 hours ago Share Posted 15 hours ago 80 .000 !!! didn't know =non planetary how ??? Quote Link to comment https://www.bigmacktrucks.com/topic/75663-mack-80000-pound-rears/#findComment-577474 Share on other sites More sharing options...
Geoff Weeks Posted 14 hours ago Share Posted 14 hours ago (edited) Not up on the newer stuff, but I know Meritor (Rockwell) made some double reduction units. There are two different capacities you need to consider, one is the housing and brake capacity and the other is the torque/reduction needed to move that. The double reduction were built like a standard front of a tandem with a high input and a bull gear on the pinion, but differed in that the drive ratio wasn't 1:1 from the input to the bullgear on the pinon. housing and brakes were higher capacity, allowing to carry more weight. Edited 14 hours ago by Geoff Weeks Quote Link to comment https://www.bigmacktrucks.com/topic/75663-mack-80000-pound-rears/#findComment-577475 Share on other sites More sharing options...
Bullheaded Posted 14 hours ago Author Share Posted 14 hours ago I haven't been able to find much info on either one of them. And we have not taken delivery of the C500's yet, I only have the line sheets and a picture of the first chassis and that was the first thing I noticed was non planetary rears and the hubs look just like normal 46,000 rears. Ours have 9-point-something ratio in them. Basically going to top out at our mines speed limit of 40 MPH. Quote Link to comment https://www.bigmacktrucks.com/topic/75663-mack-80000-pound-rears/#findComment-577477 Share on other sites More sharing options...
Swishy Posted 2 hours ago Share Posted 2 hours ago Built like a Mack Truck Read all about it! https://www.oemoffhighway.com/drivetrains/axles-driveshafts/axles/press-release/21122478/mack-trucks-inc-mack-trucks-introduces-s852-85000lb-tandem-axles cya Quote Link to comment https://www.bigmacktrucks.com/topic/75663-mack-80000-pound-rears/#findComment-577503 Share on other sites More sharing options...
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