Power Divider

[genoredstar]

Has anyone ever encounterd a power divider remaining locke when air switch is disengaged? I encountered a situation going down hill with a steep grade loaded and heavy engine braking in a low gear vand had a severe banging noise. I'm thinking the power divider is locked and cant handle all the torque when locked on hard dry pavement. The truck drives fairly well but am experiencing poor fuel economy. Also doesn't seem to roll well down hill. Looses road speed on gentle declines when you would think it would gain speed. Could this possibly be mismatched rears?

[joes mack]

have you had this truck long? it could be a lot of difrent things. tires mismatched, mismatched rears, throughshaft penuts/gears, bearings in rears, top section dry of oil in rears if mack rears. pinion dry on oil,wheel bearings, brakes hanging rears dry on oil. thats about all i can think of in the rear of the truck. power divider should not cause it to feel bound up but its a truck anything can happen.

[Mark from OZ]

Could be a few things

There is a spring that holds the difflock out with no air (should not stay in)

My Mack starts to clunk going down hill in low

Usualy it tells me that one set of tyres is getting a bit low.

The Mack rear end likes to have all the same size tyres.....Mark

[fjh]

Could be a few things

There is a spring that holds the difflock out with no air (should not stay in)

My Mack starts to clunk going down hill in low

Usualy it tells me that one set of tyres is getting a bit low.

The Mack rear end likes to have all the same size tyres.....Mark

Mack diffs can also have inter wheel power divider simular to the power divider setup these make alot of racket aswell.