Allison 5sp: got a code

[ironmax]

got a 0732 when loaded with the equipment in my sig. only happened twice in last 2 days. couldnt park it, it HAD TO GO TO WORK. whats the best way to approach this. thanks

 

[Mike L.]

Need more info on trans.

 

[ironmax]

Complete drop in from ats , w/ 5star.inatalled at 260k . Came out at 290k for tore c4 apply piston. Refreshed c2 and c3's with ats clutches. Removed copilot installed transgo. Replaced all speed sensors.I have 310k on tranny now. Have not had any tunes on it since . Only does it when towing and heavy on the throttle while going through shifts. Certified ats dealer installed the direct drop in. I did the refresh and this was my first time through a trans. Shifts fine after a cycle of the key and service light go away after a couple shift cycles. I dont have efi v2 but could go to dealer for tech 2 if need be. Going to check spin on today. I cant think of any thing else. Thanks

 

[Mike L.]

P0732 can be C4 clutch pack or piston, speed sensor problem, or transfer case problem.

 

[ironmax]

Ok. Have gotten a service 4wd about 4 times. Figured it was the selector button. But ill check the t case wires and sensor. And check filters for debris. Thanks for some direction

 

[ironmax]

The problem was a tore c4 apply piston. I used genuine allison parts when i fixed this the last time. Are these luck of the draw type of parts. I beleive i have a bigger issue ,as this part lasted exactly the same amount of time as the last one. What can i check