What is RPO G80?
What is RPO G80?
The optional locking differential (RPO G80) enhances the traction capability of the rear axle by combining the characteristics of a limited-slip differential and the ability of the axle shafts to “lock” together when uneven traction surfaces exist.
Why is the Eaton G80 called the G80?
Everyone calls this bit of equipment G80 due to its order code. Regarding the Eaton end of the deal, these guys are mainly known for making high-spec superchargers. As a prime example of Eaton’s know-how, the ‘Vette Z06 utilizes an Eaton blower for its LT4 small-block V8. Back to the G80 locking rear diff then.
What is the G80 code on a Chevy Silverado?
In all GM light duty trucks, the G80 code indicates the vehicle is installed with the Eaton G80 locking rear differential. The G80 code in passanger cars indicates LSD. They are 2 completely different systems.
Is the Eaton Gov-Loc a limited slip?
Note that the Eaton Gov-Loc is NOT a limited slip; the information in the above paragraph does not apply to the Eaton unit used by GM for the trucks! Some light duty trucks equipped with locking rear axles (G80) may exhibit rear axle chatter, especially when turning a corner from a stop.
What kind of clutch does a GM G80 have?
The confusion is that the locking G80 in GM trucks uses a clutch type system similar to LSD, except that it fully engages (locks) when more that 100rpm wheel speed difference is detected. All trucks with the G80 code include this locking LSD type differential. I guess I always thought G80 was locker, G86 was limited slip…. guess not.
Everyone calls this bit of equipment G80 due to its order code. Regarding the Eaton end of the deal, these guys are mainly known for making high-spec superchargers. As a prime example of Eaton’s know-how, the ‘Vette Z06 utilizes an Eaton blower for its LT4 small-block V8. Back to the G80 locking rear diff then.
In all GM light duty trucks, the G80 code indicates the vehicle is installed with the Eaton G80 locking rear differential. The G80 code in passanger cars indicates LSD. They are 2 completely different systems.
Note that the Eaton Gov-Loc is NOT a limited slip; the information in the above paragraph does not apply to the Eaton unit used by GM for the trucks! Some light duty trucks equipped with locking rear axles (G80) may exhibit rear axle chatter, especially when turning a corner from a stop.
The confusion is that the locking G80 in GM trucks uses a clutch type system similar to LSD, except that it fully engages (locks) when more that 100rpm wheel speed difference is detected. All trucks with the G80 code include this locking LSD type differential. I guess I always thought G80 was locker, G86 was limited slip…. guess not.
