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Home Chassis & Suspension 1955-57 Chevy Transmission Crossmember & Cushion Kit
1949-54 Chevy Car/53-62 Corvette Front Disc Brake Conversion Kit
1949-54 Chevy Car/53-62 Corvette Front Disc Brake Conversion Kit $220.00
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1955-57 Chevy Tubular Control Arms, Coilovers and Sway Bar Kit
1955-57 Chevy Tubular Control Arms, Coilovers and Sway Bar Kit $1,125.00

1955-57 Chevy Transmission Crossmember & Cushion Kit

$100.00

Transmission Mount Included, 2.00″ Tube O.D., Steel
  • Update your ’55 to ’57 Chevy car with this tubular transmission crossmember which allows you to use modern automatic or manual transmissions
  • Simple no-weld installation only requires drilling a few bolt holes for assembly
  • Sturdy 2″ OD steel tube construction ensures rigidity even in the most extreme environments
  • Meets or exceeds OEM specifications
  • Rubber formulation provides abrasion resistance and aging stability.
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Category: Chassis & Suspension
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Description

Product Summary

Transmission Mount Included, 2.00″ Tube O.D., Steel
  • Update your ’55 to ’57 Chevy car with this tubular transmission crossmember which allows you to use modern automatic or manual transmissions
  • Simple no-weld installation only requires drilling a few bolt holes for assembly
  • Sturdy 2″ OD steel tube construction ensures rigidity even in the most extreme environments
  • Meets or exceeds OEM specifications
  • Rubber formulation provides abrasion resistance and aging stability.

Details

Crossmember

On your ’55-’57 Chevy car, the front motor mounts are at the front of the block and the rear mount attaches to the bellhousing.  This works fine for original use, but makes it hard to swap in a different tranny or add belt driven accessories to the front of the engine.  This mount kit is the solution!

  • Uses common mounts.
  • No welding, but drilling is required.
  • Mounting a TK500 or TK600 may require risers/spacers to get proper driveline angle.

Rubber Mount Cushion 

OEM-style rubber transmission cushion for many ’58-’82 GM transmissions including TH350 auto, Muncie, Saginaw, and others.

  • Meets or exceeds OEM specifications
  • Rubber formulation provides abrasion resistance and aging stability
  • Tough, hardened steel plate & inserts
  • Chemlock® bonding agent ensures superior rubber-to-metal bond

Specs

  • End to end width = 32-7/8″
  • Center to center width (mounting holes) = 3″
  • Drop of top of tube to top of plate = 2-3/4″
  • S-bracket drops the mount surface for teh crossmember 2″ down from the top of the frame
  • S-bracket is 4″ wide- slotted holes for crossmember mounting are 1″ to 1-3/4″ long

Guides & Documents

  • Transmission Crossmembers Instruction Sheet (91628910)(PDF)

KEY SPECS

MFG. Part # 9100833
Brand Speedway Motors
Drop 2.75″
Material Type Steel
Finish Natural

GENERAL

Transmission Mount Included Yes
Tube O.D. 2.00″
Sold in Quantity Kit
Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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