what rears do i have?

[Jamied625]

IN my 1995 RD688 i need a new set of rears its a triaxle dump what weight rating and ratio would it have. it has camback suspension if that helps.

Thanks

Jamie

[2stacksuperdog]

Are they one piece housings? you should be able to give the vin to your mack dealer and they can tell you

[daveigou]

If you look under from the rear of the truck, just below the check plug in the lower housing, there should be a number stamped in probably starting with S, like SS44C, or something similar. That is the model number of the axle. For the ratio, look at the front of the forward rear, and just to the left of the power divider on an angled flat spot on the top housing, there should be a carrier model, like CRD 93 or something similar, and a ratio like 4.42 or something similar.

[Jamied625]

If you look under from the rear of the truck, just below the check plug in the lower housing, there should be a number stamped in probably starting with S, like SS44C, or something similar. That is the model number of the axle. For the ratio, look at the front of the forward rear, and just to the left of the power divider on an angled flat spot on the top housing, there should be a carrier model, like CRD 93 or something similar, and a ratio like 4.42 or something similar.

ok thank you for the help that gives me what i need

Thanks,

Jamie