Its model number (RD688SX) breaks down as follows: RD: Heavy Duty R 688: Chassis and engine designation S: Six Wheel Chassis X: Extreme Duty (just in case the Heavy Duty part wasn't quite emphatic enough). The truck has a tare weight of 26,800 lbs. The heavy duty double frame, Allison automatic transmission with a 6:64 gear ratio, and 64 mph top speed courtesy of a low-mileage Mack E7 350 engine - in other words, the stuff that counts when you count on your truck - are also in top form. But really, it's hard to build a hood to the same specs as this RD688SX's 20,000lb front axle, or its (very rare) 65,000 pound rears, and she'd get pretty lousy gas mileage if they had. Regarding this 2001 model, first things first: The hood, and air cleaner box need a little TLC. Then, as now, the Mack was truly an all-purpose vehicle. By this point, Mack had learned from the experience of producing tens of thousands of vehicles for the Allied war effort in World War II, and thousands more of the B-model Macks. The Mack R series was introduced in 1966 as a replacement for the beloved B series. So a Mack isn't your ordinary truck it's a vehicle with a pedigree. Just as importantly, their trucks are still built with the power and tenacity that earned them the “Bulldog” nickname long before the bulldog mascot ever graced their trucks. The Mack tradition of introducing innovations into their products – theirs were the first trucks with air and oil filters, drive shafts, and power brakes – continues to this day. Over the years they've built a bit of everything, including buses, trains, APCs, and fire trucks. Mack Trucks has been in business for more than a century. A big bonus to swapping is making brake a seal changes a lot easier, no more dealing with that heavy spoke hub and swapping brake shoes can be done in minutes without removing the hub.R-Model Mack Roll Off for sale | Mack Garbage Trucks used | Can Hauler Lightweight aluminum alcoas are about 20-30# lighter than a 24.5 steel rim, hub piloted cast hubs are around 30-40# lighter than 44k spoke hubs so that's 120-160# in hubs and 160-200# in wheels for a total of 280-360#.

As for aluminum wheels from spokes you will get cast hubs for 44 rears and then with all aluminum wheels my math says you'll lose about 360#. Point being they vary a lot any two are never the same even built as twins, they can be close but one will be heavier, run her to the scale real quick and you'll know. I had one 97 R model triaxle dump that was all spokes and a steel bed that was 28400 and a 2000 R with the same specs but all aluminum wheels and a thinner bed that was only 24400. My 85 sleeper truck has a V8 and an Eaton 9 spd double frame and 44 rears with all aluminum wheels and tanks and weighs 18,900. I would guess you were close to 1700, my 84 Superliner daycab was a V8 12spd truck with double frame and 44 rears, had all aluminum wheels and tanks but weighed 19100. I don't know why it's so hard to just find a sheet that shows every make of truck and weight it is.Īgreed, trucks vary too much for anyone to tell you what it weighs, just run it to the scale bobtail and get a weight then you can subtract it from your combo weight and see what your trailer actually weighs.

I hope all of you can give me some insight on this. I guess i was just wondering all this because I can see myself driving this truck for quite awhile, and lets say if i put aluminum wheels on my truck and when i was ready to sell my trailer and get a used lightweight with a liner in it, could i be 27000 or less? Or is the R model just TOO heavy because i am an R model guy for life!

it's quite a nice setup as far as being durable. the inside of the box has more bulk on the sides and i also have a 1/8 inch steel floor from the doghouse to the trailer. The trailer i use is a 1980 fruehauf tub that was rebuilt to be more heavy duty. I weigh 28860 with full fuel and everything at max, with barely anything, i am lucky to achieve an empty weight of 28100 to 28200. I think the r model tends to be heavier because of the steel doors and cab right? A guy i work with just got a used EAST trailer with liner in it and he is around 27000 empty. All i know is that they vary from 14000 to 17000? So how do i find out what that weight was from mack?

I am trying to find out empty weights and how they differ. All i can find is the rear axle weight and some other stuff that i think i need explained to me.įor example, i have a 95 mack rd 350 mechanical single frame, eaton 9 speed, 442 rears, 2 aluminum wheels and 6 steel wheels. What is the weight of my truck / your truck. Okay so i was trying to research this before i made a post on it so here goes.

Mack garbage truck empty weight