#4156, "RE: Question about the Final drive for Auto trans. 420a." In response to In response to 0
no... the final drives rarely make any noise at all... Id look back into your brake system.If anything from your trans is going to whine/squeel itd be your planetarys but 90% of the time a trans flush fixes that.... look into your brakes bud.... summins up there i bet mods include but not limited to: engine: AEM cai , pp head / TB / intake runners, Chikira 4-2-1 header , custom 2.5" exhast / pacesetter high flow cat/flowmaster2 muff,1mm over sized SS valves,PT valvetrain, AEM cam gears/pully set, prothane motormounts,440 injectors , ground kit. Trans: Custom ATX (1 of a kind) poly-graphite steels , kevlar clutches , final drive , shift kit,3500 stall TC, Tourqe Wonder trans chip ($120.00 2gnt price only!!email for order info)