
1963-1987 LS Swap Transmission Crossmember TH350 TH400 700R4 4L60e 4L80e 6L80/90 8L90
Speed Engineerings crossmember is designed off of ICT Billet's LS motor mount plates set in the furthest back location, and works with a variety of transmissions.
- Heavy Duty Mild Steel Construction
- Made in the USA
- Works with Factory 350, 400, 700R4 Transmissions
- Compatible with: TH350, TH400, 700R4, 4L60E, 4L65E, 4L70E, 4L80E, 6L80E, 6L90E, 8L90E
- Adjustable up to 3"
- 1.25" x .120 Wall
- Additional Chassis Clearance
- Light Weight Construction (8lbs)
• Drilling new frame holes may be required on some applications/swaps.
• Additional aluminum shims are available for correcting driveline angle. Each shim will correct 1 degree of angle and is cut out of 1/4" aluminum. Some transmissions might need more shims than others.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Speed Engineerings crossmember is designed off of ICT Billet's LS motor mount plates set in the furthest back location, and works with a variety of transmissions.
- Heavy Duty Mild Steel Construction
- Made in the USA
- Works with Factory 350, 400, 700R4 Transmissions
- Compatible with: TH350, TH400, 700R4, 4L60E, 4L65E, 4L70E, 4L80E, 6L80E, 6L90E, 8L90E
- Adjustable up to 3"
- 1.25" x .120 Wall
- Additional Chassis Clearance
- Light Weight Construction (8lbs)
• Drilling new frame holes may be required on some applications/swaps.
• Additional aluminum shims are available for correcting driveline angle. Each shim will correct 1 degree of angle and is cut out of 1/4" aluminum. Some transmissions might need more shims than others.






















