What do my RPO codes mean?

What do my RPO codes mean?

Regular Production Option
RPO stands for Regular Production Option and is General Motors’ standard coding for the configuration options of a vehicle. Usually composed of a combination of three alphanumeric characters (like LS3), an RPO code designates how a vehicle is built during production.

What is a Chevy RPO code?

A Regular Production Option (RPO) is a General Motors standard coding for vehicle configuration options and began in 1970. These codes are a combination of 3 alphanumeric characters and refer to a specific option or modification to the vehicle including the paint color.

How do I identify my Chevy rear differential?

The rear cover’s shape and the number of bolts are identifying features for GM rear differentials. The round 10-bolt cover with a bulge for the ring gear identifies this axle assembly as an 8.5-inch 10-bolt. The two lugs on the lower case at the 5 and 7 o’clock positions are also identifying features.

Is a GT4 rear end posi?

All Quadrasteers have G86 posi units. Normal rearends may have G80 posi units. QS rears all came with either 3.73 or 4.10 gears. 3.73s will be GT4, 4.10s are GT5.

What is the RPO code for Z71?

“Z71” is a Regular Production Option, or RPO, code that U.S. automaker General Motors uses for its off-road suspension package. This particular option is most famously associated with vehicles out of GM’s Chevrolet division.

What is RPO code SLM?

SLM SLM : STOCK ORDER, PROCESSING CODE. VXS VXS : VEHICLE COMPLETE. YD3 YD3 : FRONT AXLE, BASE EQUIPMENT FOR SCHEDULING, GVW PLATE.

Is a 12-bolt rear end good?

When the 12-bolt rearend is properly assembled, it’s the strongest passenger-vehicle rearend Chevy ever produced. GM engineers designed the 12-bolt to be a durable piece that could handle the torque output of its big displacement engines.

Is GT4 limited slip?

The rear differential on the GT4 is a mechanical limited-slip, and not the GT3’s electronic diff, which needs the PDK gearbox to run its hydraulic pump. Porsche claims the GT4’s steering is even better than the GT3’s, thanks to the latest tuning and software.

What does DUP of 5X1 mean?

it means that if someone has RPO code 5X1 in their option list, it is the same as (a duplicate of) a GT4 code.