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UMI Performance

UMI Performance 65-66 GM B-Body Upper Control Arm Mount

MPN: 3664-r Catalog #: 001588262 Category: Suspension Arms & Components Check Vehicle Fitment

Product Details

This new replacement rear control arm mount replaces the stock control arm mount that attaches the rear upper control arm to the vehicle chassis. This item works excellent when the factory mount is too rusted to re-use or when installing a 12-bolt 4-link set-up into a 3-link equipped vehicle. Replacement bracket is CNC machined from 0.188” thick steel plate, precision bent and supplied with a bright red or gloss black powder coat. Item includes new grade 8 hardware to complete installation. This mount also features instant center adjustment by lowering or raising the upper control arm. The center hole supplied in the bracket represents the factory location.

Note: This item is sold each. Please verify whether your vehicle has (1) or (2) upper control arms. Six cylinder and most small block vehicles were supplied with a 3-link rear suspension while big block vehicles used a 4-link set-up.

UMI Performance 65-66 GM B-Body Upper Control Arm Mount

1965-1966 GM B-Body Upper Control Arm Mount

Control Arm Mount

Vehicle Fitment

Please verify year, make, model, and any notes before ordering.

Product Specs

Brand
UMI Performance
Part Number
3664-r
Catalog Number
001588262
Product Line
Control Arm Mounts
Category
Suspension
Type
Suspension Arms & Components
UPC / Barcode
3664-R
Vendor Product Category
Suspension
Vendor Product Subcategory
Suspension Arms & Components
Length
10.00 in
Width
6.00 in
Height
6.00 in
Weight
4.00 lb
Units Per SKU
1
Freight / LTL
No
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 38 Available - Ready to ship
Estimated timing Ships from factory

This item is showing manufacturer availability and may ship directly from the manufacturer. Tracking details are provided as soon as they become available. ETA 0-5 Days to ship.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 38 available as of 6/4/2026.

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