Axle, Positraction limited slip

Years 1967–78, 1999–00, 2002–09, 2014–18, 2025–26 Models 14 Factory citations 29

Also described as Controlled differentialLimited-slip differentialDifferential, rear, mechanical limited-slipDifferential, mechanical limited-slipAxle, Positraction, limited slipAxle, positraction, limited slipAxle, rear, PositractionDifferential, rear, heavy-duty locking

Also documented for Buick Chevrolet GMC Oldsmobile Pontiac Saturn

Documented applications

Eldorado

1967–70 Confirmed

**Not available** — FWD; "except Eldorado" in all sources
1971–78 Confirmed

**Not available on Eldorado** (FWD)

Seville

1978 Confirmed

$67

ATS — Alpha (2013–2019)

2014–2015, 2018 Factory-verified

GM factory document — 2014 cadillac ats fleet order guide wayback, p.10.
GM factory document — 2015 cadillac ats coupe fleet order guide wayback, p.4.
GM factory document — 2018 cadillac ats coupe fleet order guide wayback, p.4.
GM factory document — 2018 cadillac ats sedan fleet order guide wayback, p.4.

CT4 — Alpha 2 (2020–2026)

2025–2026 Factory-verified

only in: CT4-V and CT4-V Blackwing; V-Series: S

GM factory document — 2025 cadillac ct4 v ct4 v blackwing fleet order guide, p.7.
GM factory document — 2026 cadillac ct4 v ct4 v blackwing fleet order guide, p.8.

CTS — Sigma II (2008–2015)

2008–2009, 2014 Factory-verified

The 2014 guides call it the limited slip differential; every 2014 coupe and the CTS-V Sedan: S

GM factory document — 2008 cadillac cts rpo code list, p.1.
GM factory document — 2009 cadillac cts rpo code list, p.1.
GM factory document — 2014 cadillac cts coupe and cts v coupe fleet order guide wayback, p.3.
GM factory document — 2014 cadillac cts v sedan fleet order guide wayback, p.4.

CTS — Sigma / GMX320 (2003–2007)

2005–2007 Factory-verified

GM factory document — 2005 cadillac cts rpo code list, p.1.
GM factory document — 2007 cadillac cts rpo code list, p.1.

Escalade EXT — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade ext rpo code list, p.1.
GM factory document — 2006 cadillac escalade ext rpo code list, p.1.

Escalade EXT — GMT900 (2007–2013)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade ext rpo code list, p.1.
GM factory document — 2009 cadillac escalade ext rpo code list, p.1.

Escalade — GMT400-based, GMT435 (1999–2000)

1999–2000 Factory-verified

GM factory document — 1999 cadillac escalade rpo code list, p.1.
GM factory document — 2000 cadillac escalade rpo code list, p.1.

Escalade — GMT800 (2002–2006)

2002–2006 Factory-verified

GM factory document — 2002 cadillac escalade 2wd rpo code list, p.1.
GM factory document — 2006 cadillac escalade rpo code list, p.1.

Escalade — GMT900 (2007–2014)

2007–2009 Factory-verified

GM factory document — 2007 cadillac escalade rpo code list, p.1.
GM factory document — 2009 cadillac escalade rpo code list, p.1.

Escalade — K2XX (2015–2020)

2015–2017 Factory-verified

2015: S on all trims; the 2016–2017 lists read Positraction limited slip

GM factory document — 2015 cadillac escalade fleet order guide wayback, p.4.
GM factory document — 2016 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2016 en us, p.8.
GM factory document — 2017 chevrolet escalade escalade esv suburban tahoe yukon yukon xl electrical body builders manual service manual 2017 en us 1, p.19.

SRX — Sigma / GMT265 (2004–2009)

2006–2009 Factory-verified

GM factory document — 2006 cadillac srx rpo code list, p.1.
GM factory document — 2009 cadillac srx rpo code list, p.1.

STS — Sigma (2005–2011)

2005–2009 Factory-verified

GM factory document — 2005 cadillac sts rpo code list, p.1.
GM factory document — 2009 cadillac sts rpo code list, p.1.

This page aggregates every documented appearance of G80 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.