Made in USA
503M Tubular Subframe Connectors, 1982-1992 GM F-Body, Bare Metal
InfoVehicle Info Needed
SPOHN PERFORMANCEPART NUMBER: 267-503M

503M Tubular Subframe Connectors, 1982-1992 GM F-Body, Bare Metal

$23900
ShippingShips on Sep 02, 2026
Lowest PriceLowest Price Guarantee

GM F-Body
Weld-In Tubular Subframe Connectors
  • 1982-1992 GM F-Body
  • T-Top & Hard Top Cars
  • Bare Metal

    Spohn Performance 503M Features:

    Put an end to squeaky dashboards, cracking body panels and seriously enhance your chassis' handling and launch performance. When it comes to locking together the chassis on a 1982-1992 T-Top & Hard Top third generation GM F-Body Camaro and Firebird, nobody does it better than Spohn Performance!
    We don't consider our kit to be just a point to point sub-frame connection, we provide the components necessary to install a full frame to the underside of your uni-body vehicle.
    Our in.truss-style in. framing system is constructed of 1.75 in. x 0.120 in. wall DOM tubing for serious, uncompromised rigidity. Our frame rail connects to the rear lower control arm mounting area and runs the entire length of the rocker panel ending at the rear side of the front wheel well. The main shaft is formed to fit the contour of the floor board, providing for weld contact area the entire length of the frame shaft, and no ground clearance loss.
    We don't stop there. Mid-shaft we install a in.Y in. frame that connects the main frame shaft to the beefy front sub-frame at the transmission crossmember mounting area. This provides for the ultimate in chassis stiffening by utilizing a triangulated framing design. The frame rails also provide for an excellent jacking point.
    This is a weld in system that ships to you in bare metal for easier welding. If you've been looking for the ultimate sub-frame connection system for your 1982-1992 T-Top and Hard Top third generation GM F-Body, you just found it!
    These SFCs are designed to be used on single-cat or dual-cat y-pipe exhaust systems. The passenger's side main shaft necks down in the front to allow proper y-pipe clearance. No exhaust or floor board modifications are necessary to install our SFCs.
    Priced per Pair --- Qty. 1 = 1 Pair

    • 1.75 in. x 0.120 in. wall DOM tubing main shafts
    • Truss style framing system for serious, uncompromised rigidity
    • Clears single cat and dual cat y-pipes
    • No exhaust or floor board modifications are necessary. Welding is required.
    • Bare metal finish for easier welding
    • Improve Chassis Rigidity

      Spohn Performance Subframe Connectors are the ultimate solution for reinforcing your chassis. Enhance handling, improve launch performance, and eliminate unwanted body squeaks with superior rigidity. By seamlessly linking the front and rear of your vehicle, you achieve unmatched structural strength.

    Part TypeSubframe Connector
    Product LineSpohn Perfomance Subframe Connectors
    BrandSPOHN PERFORMANCE
    Package Height3.0
    Package Width6.0
    Package Length66.0
    Weight28.0 PG
    Part CategoryPerformance Parts
    Mount TypeWeld In
    MaterialMild Steel
    Part FitmentDirect Fit
    FinishBare Metal
    Grade TypePerformance
    Vendor Part Number503M
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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