GM 6T50 6-Speed FWD Automatic · GM/Chevrolet/GMC/Cadillac/Buick · Expert rebuild service since 1987. Lifetime warranty. Free diagnostic.
2010–2019 Chevrolet Impala (3.6L); 2010–2017 Buick LaCrosse (3.6L); 2013–2016 Cadillac ATS (3.6L FWD); 2010–2019 Chevrolet Traverse (limited FWD versions); behind 3.6L V6 FWD/AWD
| Configuration | 6-speed FWD transaxle — V6 capacity variant |
|---|---|
| Gear Ratios | 1st 4.48:1 · 2nd 2.87:1 · 3rd 1.84:1 · 4th 1.41:1 · 5th 1.00:1 · 6th 0.74:1 · Rev 3.82:1 |
| Fluid Type | Dexron VI ATF |
| Fluid Capacity | 9.5 qts total, 5.0 qts service refill |
V6 applications put more torque through the SRV bore, accelerating wear.
Symptoms: 2nd-gear slip under V6 torque; harsh 1-2 shift
V6-powered vehicles with the 6T50 see TCC shudder at 40–60 mph from Dexron VI degradation.
Symptoms: Shudder at highway speed under light throttle
High-mileage solenoid body wear causes erratic shift quality.
Symptoms: Limp mode; P-codes; harsh shifts
SRV bore kit. Solenoid body replaced. TCC inspected. All clutch packs replaced (V6 specification). Full soft parts.
Dexron VI every 40,000 miles. V6 applications should service at 35,000 miles.
The 6T50 handles V6 torque levels vs the 6T45's 4-cyl/V6 light applications. Larger clutch packs and stronger case.
TCC shudder — flush with Dexron VI. Resolves most cases.
$1,700–2,300.
Dexron VI.
2 days.
Free diagnostic, written estimate, lifetime warranty. Chicago's 6T50 rebuild specialists since 1987.
