hey guys, can one of you take a look at your codes in your glove box and tell me what rpo code is for the Heavy Duty half ton 6-lug, 14-bolt 9.5" rearend with disc brakes?
These came in the some of the 05+ Vortec max, SS, and some of the trucks.
Any gear ratio is good, but it's probably going to be 3.73 or 4.10.
I need one.
thanks,
allen
some info below.
http://www.pirate4x4.com/tech/billav.../specs/RPO.pdf
GM-Trucks.com- The GM Truck & SUV enthusiast website - RPO Code Lookup
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2000 ECSB 6.0L
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