855.444.6872 Contact Us Mon-Sat 10a-6p
DRIVEN BY CARE

1955-59 Chevy,GMC Truck, Rear Inner Cab Mount Support Brace Set, RH & LH, pair

1955-59 Chevy,GMC Truck, Rear Inner Cab Mount Support Brace Set, RH & LH, pair
1955-59 Chevy,GMC Truck, Rear Inner Cab Mount Support Brace Set, RH & LH, pair
$76.99 pr
NEWARRIVING SOONEstimated Ship Date 05/15/2026 (If Ordered Today)75 Available from our supplier as of 04/28/2026
Model: 3962121
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
STANDARD
DELIVERY
STORE PICKUP
[More Info]

Reproduction rear inner cab floor supports for 1955-59 Chevrolet and GMC trucks. When replacing your truck cab floor, you may also need to replace the inner supports. These quality reproduction supports will install as original.

Features and Benefits:
  • Stamped steel construction built to OE specifications
  • Authentic reproduction ensures proper fit and function
  • Restores structural integrity when replacing cab floor panels
  • Black EDP coated for rust and corrosion resistance
Technical Information:
  • Fits 1955-59 Chevrolet truck models (2nd Series for 1955)
  • Fits 1955-59 GMC truck models (2nd Series for 1955)
  • Direct replacement for rear inner cab floor supports
  • Welding required for installation
Chevrolet Truck Applications
  • 1956 - 1959 Chevrolet 3100
  • 1956 - 1959 Chevrolet 3100 3A
  • 1959 - 1959 Chevrolet 3B
  • 1959 - 1959 Chevrolet 3C
  • 1959 - 1959 Chevrolet 3D
  • 1959 - 1959 Chevrolet 3E
  • 1959 - 1959 Chevrolet 3F
  • 1959 - 1959 Chevrolet 3G
  • 1955 - 1959 Chevrolet Truck Base
  • 1955 - 1958 Chevrolet Truck 3800
  • 1955 - 1958 Chevrolet Truck 3700
  • 1955 - 1958 Chevrolet Truck 3600
  • 1955 - 1958 Chevrolet Truck 3400
  • 1955 - 1958 Chevrolet Truck 3200
  • 1955 - 1955 Chevrolet Truck 3100
  • 1955 - 1958 Chevrolet Truck 3500
GMC Truck Applications
  • 1955 - 1959 GMC 100
  • 1955 - 1955 GMC 100-22
  • 1955 - 1959 GMC 150
  • 1955 - 1955 GMC 150-22
  • 1955 - 1959 GMC 250
  • 1955 - 1955 GMC 250-22
  • 1955 - 1955 GMC 280-22
  • 1955 - 1959 GMC 300
  • 1955 - 1959 GMC Truck
1955 1st Series - what to look for:
  • Chevrolet: 2 round dash gauges, left side gauge cluster, right side speedometer
  • GMC: 6 gauge dash panel, outer gauges are staggered
  • 6-volt electrical system
  • 2-piece hood with a hood split molding
  • Small curved windshield
  • Fat front fenders that resemble the rear fenders
1955 2nd Series - what to look for:
  • Chevrolet: "V" shape speedometer/dash gauge cluster
  • GMC: 6 gauge dash panel, outer gauges are over/under each other
  • 12-volt electrical system
  • One-piece full size hood
  • Large curved wrap around windshield
  • Front fenders are flush with the doors

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Years
Chevrolet 3100 1959
Chevrolet 3B 1959
Chevrolet 3C 1959
Chevrolet 3D 1959
Chevrolet 3E 1959
Chevrolet 3F 1959
Chevrolet 3G 1959
Chevrolet Truck 1955 - 1958
Dodge Truck 1955 - 1959
GMC Truck 1955 - 1959

Specifications:

Height 18 in
Length 2 in
Weight 3 lbs
Width 17 in

Reviews:

Write a Review
* Your Name:
* Email (This will not be displayed)
* Rating:
Comments:

Ask a question about

1955-59 Chevy,GMC Truck, Rear Inner Cab Mount Support Brace Set, RH & LH, pair: