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Re: gm cab forward axle 10.5
Posted to HD/Fleet Forum on 1/17/2019

The only RPO code I see on this vehicle pertaining to the rear axle is HC4: AXLE,REAR,4.56 RATIO 4.56R(HC4). As far as I can tell, that is not a wide-track axle. If you want you should now be able to see the build sheet here: [...] [[...]] Login to read more.