# Eaton Detroit Truetrac Differential 27 Spline 1.15in Axle Shaft Diameter 3.73 & Up Ratio Dana 30

The Detroit Truetrac is a helical-gear style, limited-slip differential that maximizes wheel traction and enhances driving characteristics. Maintenance-free, it features smooth, automatic operation in forward and reverse. Its versatility makes Detroit Truetrac the ideal traction solution for almost any type of vehicle.

-   Optimized Torque Bias Ratios Deliver Max Acceleration And Handling
-   No Special Lubrication Or Friction Modifiers Needed
-   Helical Gear Limited Slip Differential
-   Durable; Smooth; Quiet Operation
-   Works In Forward And Reverse
-   Ideal For Most Vehicles
-   Automatic Engagement

This Part Fits:

Year

Make

Model

Submodel

1970-1974

Volvo

142

Base

1971-1972

Volvo

142

E

1974

Volvo

142

GL

1970-1974

Volvo

142

S

1970-1974

Volvo

144

Base

1974

Volvo

144

GL

1970-1974

Volvo

144

S

1970-1972,1975

Volvo

164

Base

1973-1974

Volvo

164

E

1970-1974

Volvo

164

S

1990-1993

Volvo

240

Base

1990

Volvo

240

DL

1992

Volvo

240

GL

1991

Volvo

240

SE

1976-1979

Volvo

242

Base

1980-1984

Volvo

242

DL

1975,1981

Volvo

242

GL

1981-1984

Volvo

242

GLT

1981

Volvo

242

Turbo

1975-1978,1984-1985

Volvo

245

Base

1979-1983,1986-1989

Volvo

245

DL

1982-1983,1986-1989

Volvo

245

GL

1981-1983

Volvo

245

GLT

1976

Volvo

265

Base

1977-1979

Volvo

265

GL

1980-1981

Volvo

265

GLE

## Details

- **Price:** 1204.67 CAD
- **Vendor:** Eaton
- **Type:** Differentials

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1204.67 CAD | In stock |

## Images

- Photo - Primary
- Photo - Primary
- Photo - Primary
- Photo - Unmounted

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/eaton-detroit-truetrac-differential-27-spline-1-15in-axle-shaft-diameter-3-73-up-ratio-dana-30)
> Updated: 2026-06-27