Thanks to anyone who can help!
I'm replacing worn out bearings on the rear end on a 55 commercial truck, and the carrier (or maybe the whole axle assembly) does not appear to be original. I found axle bearings OK, but I'm stumped by the carrier.
Casting # 3766686
underneath that casting number is a line with:
slotted screw-head-looking bump pointing at 1 o'clock
the numbers '137'
slotted screw-head-looking bump pointing at 3 o'clock
the letter 'D'
underneath all that is an 'X'
elsewhere is stamped 'MH608' and a crooked 'D' and another crooked 'H'
I'm just trying to help my local NAPA dude get me the correct bearing kit.
Maybe an early 60s 3/4 ton setup?
Last edited by x75; Mon Jul 07 2014 06:42 PM.