Product Description:
Hawks Motorsports is pleased to offer our clients the following.
This black powder-coated transmission crossmember supports an 8L90 automatic transmission in 1984-1992 Camaro and Firebird LSx conversions. The application-specific design is based on Hawks engine-mount kit geometry and the 8L90 transmission-mount position.
| Feature | Product specification |
| Producer | Hawks Motorsports |
| Product type | LSx swap transmission crossmember |
| Vehicle application | 1984-1992 Camaro / Firebird with LS engine and 8L90 automatic |
| Original / application reference | Hawks engine-mount system geometry |
| Condition | New fabricated component |
| Quantity | One crossmember |
- One LSx / 8L90 transmission crossmember
- Black powder-coated finish
- Application-specific third-generation F-Body design
8L90-Specific Geometry
This crossmember is fitted to the 8L90 automatic and differs from 10L90, TR6060 and other transmission versions.
Hawks Engine Position
The design assumes the LS engine is located by the matching Hawks mount system.
Complete Swap Measurement
Confirm case and pan clearance, cooling-line routing, driveshaft requirements, driveline angle and exhaust space.
| Year / application | Required configuration |
| 1984 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1985 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1986 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1987 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1988 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1989 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1990 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1991 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
| 1992 Chevrolet Camaro / Pontiac Firebird | LSx swap; 8L90 automatic; Hawks engine-mount geometry |
Model, trim and equipment availability can vary. Compare the original component, installation location and product photographs before ordering.
- Mock up the LS engine and 8L90 before final assembly.
- Verify chassis condition and engine-mount geometry.
- Support the automatic transmission securely.
- Test-position the crossmember and inspect tunnel and pan clearance.
- Measure driveline angle and plan driveshaft length.
- Tighten the assembly and recheck all clearances at ride height.
Which automatic transmission matches this part?
This crossmember is designed for an LSx swap using an 8L90.
Can it be substituted for the 10L90 version?
No. The 8L90 and 10L90 applications have separate crossmember listings.
What other measurements remain necessary?
Transmission clearance, driveshaft length, driveline angle, exhaust routing and shifter linkage must be verified for the build.
Can a previously repaired vehicle differ from stock?
Yes. Compare the existing mounting area carefully when prior work is visible.
When should installation stop?
Stop if the component must be forced or the stated configuration does not match the vehicle.
