- Factory Installed Upgrade Available For Any 1955-57 Body
- ONLY AVAILABLE WHEN ORDERING AN RDS BODY!
- Custom New Steel 16-Gauge Tunnel
- Comes Fully Formed, Welded And Installed
- Enlarged Nearly 2″ To Allow Easy Installation Of GM 4L60, 4L80, 6L80, 6L90 And Tremec T-56 Transmissions
- Also Works With The GM 8L And 10L Series Transmissions
- May Be Ordered With Recessed Firewalls RFW-56-Upgrade Or RFW-57-Upgrade
- Item Requires Shipping
- Free Shipping!
Please call or email us at Palm Beach Customs for a shipping quote!
All shipments are F.O.B. Fife, Washington.
All Motor Freight shipments must be prepaid with a credit card, money order, cashiers check, check or cash.
Credit card purchases for first-time purchasers must be shipped to the cardholder’s address. This procedure is designed to protect you, the cardholder.