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1961-64 Impala SPEC Chassis


SPEC is an engineering focused approach using the latest in manufacturing technology to build the lightest, strongest, and easiest to install complete chassis system. These technologies have been used to streamline procedures resulting in lower cost and shorter lead times. The SPEC IFS is engineered to deliver outstanding performance wrapped up in user friendly package. A completely new proprietary suspension geometry has been designed to provide the best balance of ride quality and performance in its class.

The Benefits:

  • No kinks, bends or stressed areas that are prone to flex like mandrel bent tubing.
  • Ability to contour to stock floors with minimal modifications.
  • Stronger, lighter, and more precise fitment.
  • CNC located factory mounts built into the frame for easy, vehicle specific installation.
  • Frame rail designs to accommodate mini-tubs.
  • Center routed exhaust clears floor with room for large mufflers.

Shipping Charges – TBD


RS exclusive “Laser Rails” precision CNC laser cut and contoured
Crossmembers and chassis bracing to contour to factory floors allowing 3″ exhaust
Adjustable, drop out trans mount
Engine/trans provisions for LS engines with 4l60, 4L65, 4L80, T56, T5, and TKO transmissions
Vehicle specific body, bumper, and core support mounts

Single adjustable billet coilovers
Power rack & Pinion steering
Easy to adjust upper a-arm eccentric mounts for fast and accurate alignments
Wilwood Pro Spindle
Triangulated 4-Bar rear suspension
Single adjustable billet coilovers
Ford 9″ housing with 31 spline axles


Shipping Details

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.


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“Due to COVID supply chain problems and price fluctuations, please call us to confirm availability.”

Due to COVID supply chain issues, please Contact Us to verify item and shipping prices, as well as availability. Thank you