Input Shaft (Internal Spline): 32
Front Output: 32 (Internal Spline, one tooth missing)
Rear Output (External Spline): 32
OE Number:
263HD / 412-585 / 412-504 / RTC263GHD2
24228407, 12584757, 12584759, 12585236, 12585238
12588104, 12588515, 12588521, 15005449, 15047934
15057934, 12575647, 24228416, 24228436, 24238187
24238193, 24238840, 24238846, 412455, 412504, 412585
412602, 412609, 12576351, 12576370, 12579582, 12579708
12579908, 12579915, 12581003, 12581010
Will Fit Following Models:
Fits Electric Shift model Compatible with 2001-2007 GM Trucks with RPO code NP1 (32 spline input shaft)
Silverado 2500 HD 2001-2006
Silverado 2500 CLASSIC 2007
Silverado 3500 HD 2001-2006
Silverado 3500 CLASSIC 2007
Sierra 2500 HD 2001-2006
Sierra 2500 CLASSIC 2007
Sierra 3500 HD 2001-2006
Sierra 3500 CLASSIC 2007
Compatibility Disclaimer: This is an aftermarket replacement part. Any brand names or model designations mentioned are used solely Compatible with the purpose of demonstrating compatibility.