Description

Trailing Arm – Boxed – Lower – Polyurethane Bushings – Steel – Black Powder Coat – GM B-Body 1978-96 – Pair

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About UMI PERFORMANCE

UMI Performance was founded in 2002 as a father/son business developing performance parts for GM and Ford products. They quickly began to focus on suspension upgrades for both older and late model muscle cars, and have become a leader in replacement and high-performance suspension components, from individual parts to entire kits.

Reviews

There are no reviews yet.

Be the first to review “UMI PERFORMANCE Rear Control Arm 3621-B”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PROFORGED Upper Ball Joint 101-10394

    SKU: PFG101-10394
    Product information
    • Weight1.375 lbs
    • Dimensions4.65 × 3.75 × 3.65 in
    • Mounting Style

      Screw In

    • Upper/Lower

      Upper

    • Greasable

      Yes

    • Hardware Included

      Yes

    • Boot Included

      Yes

    Details...
    Original price was: $80.44.Current price is: $69.95.Add to cart
    Original price was: $80.44.Current price is: $69.95.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION GM Racing Rotor 8467

    SKU: MSD8467
    Product information
    • Weight0.29 lbs
    • Dimensions7.7 × 5.75 × 1.4 in
    • Terminal Material

      Brass

    • Material

      Plastic

    • Color

      Red

    • Finish

      Natural

    • Quantity

      Each

    Details...
    Original price was: $20.00.Current price is: $17.63.Add to cart
    Original price was: $20.00.Current price is: $17.63.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    REID RACING Powerglide Front Pump PGP1

    SKU: RERPGP1
    Product information
    Details...
    Original price was: $803.83.Current price is: $730.75.Add to cart
    Original price was: $803.83.Current price is: $730.75.
    Quantity Only 1 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    IDIDIT 67 Nova Steering Column Paintable 1120630010

    SKU: IDI1120630010
    Product information
    • Weight14 lbs
    • Dimensions44.25 × 7.25 × 5.75 in
    • Quantity

      Each

    • Material

      Steel

    • Finish

      Natural

    • Turn Signal Lever

      Yes

    • Hazard Light Control

      Yes

    Details...
    Original price was: $636.00.Current price is: $578.00.Add to cart
    Original price was: $636.00.Current price is: $578.00.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VENTSHADE 11-13 Explorer Ventvisor 4pc. 94293

    SKU: VEN94293
    Product information
    • Weight2.9 lbs
    • Dimensions47 × 12 × 2 in
    • Product Line

      Original Ventvisor

    • Application Specific

      Yes

    • In Channel / Out Of Channel

      Out of Channel

    • Front Included

      Yes

    • Material

      Plastic

    Details...
    Original price was: $70.00.Current price is: $62.99.Add to cart
    Original price was: $70.00.Current price is: $62.99.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    VIBRANT PERFORMANCE Replacement Dipstick For Large Catch Can 12785

    SKU: VIB12785
    Product information
    • Weight0.03 lbs
    • Dimensions10.6 × 7.05 × 0.3 in
    • Material

      Aluminum

    • Color

      Natural / Black

    • Variant

      Yes

    • Variant Group

      Air Oil Separator Tanks11

    • Variant Column

      Size

    Details...
    Original price was: $17.99.Current price is: $14.99.Add to cart
    Original price was: $17.99.Current price is: $14.99.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOWARDS RACING COMPONENTS Support Strap – SBC 350 Front Main Cap H350FS

    SKU: HRCH350FS
    Product information
    • Weight0.655 lbs
    • Dimensions7.5 × 2.85 × 1.35 in
    • Material

      Steel

    • Quantity

      Each

    • Color

      Natural

    • Finish

      Natural

    • Machined Work Required

      Yes

    Details...
    Original price was: $27.56.Current price is: $25.05.Add to cart
    Original price was: $27.56.Current price is: $25.05.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Manual Choke Conversion Kit 45-225

    SKU: HLY45-225
    Product information
    • Weight0.58 lbs
    • Dimensions3.8 × 3.55 × 2.6 in
    • Quantity

      Kit

    • Variant

      Yes

    • Component Type

      Manual Choke

    • Existing Choke Style

      Hot Air / Electric

    • Converted Choke Style

      Manual

    Details...
    Original price was: $64.00.Current price is: $57.35.Add to cart
    Original price was: $64.00.Current price is: $57.35.
    Quantity Only 7 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WHITELINE PERFORMANCE Roll Center – Bump Steer Correction Kit KCA395

    SKU: WHIKCA395
    Product information
    • Weight3.85 lbs
    • Dimensions15.2 × 7.9 × 2.3 in
    • Stud Included

      Yes

    • Stud Quantity

      2.0

    • Stud Upper Thread

      1/2-20 in

    • Tie Rod Ends Included

      Yes

    • Tie Rod End Thread

      14 mm x 1.5

    Details...
    Original price was: $370.66.Current price is: $308.88.Add to cart
    Original price was: $370.66.Current price is: $308.88.
    Quantity Only 3 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jets (2) 122-91

    SKU: HLY122-91
    Product information
    • Weight0.02 lbs
    • Dimensions5 × 3.5 × 0.3 in
    • Fuel Type

      Gasoline

    • Inside Diameter

      0.1085 in

    • Jet Number

      91.0

    • Style

      Main

    • Thread

      1/4-32 in

    Details...
    Original price was: $17.00.Current price is: $14.69.Add to cart
    Original price was: $17.00.Current price is: $14.69.Add to wishlist

    57