Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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TH350 Transmission Cushion Mount-Polyurethane

SAME DAY SHIPPING! Order within the next 13 hours 18 minutes and receive same day shipping

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Bolt Hole Pattern:
3.75" - 4.50"
Hardware Included:
TH350 Transmission Cushion Mount-Polyurethane

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Q & A

What's in the Box

Heavy duty Turbo 350 polyurethane replacement for original GM mounts. Features a built-in safety lock to prevent separation. For race or street race use.

Fits "most" GM transmissions having a mount on the tailshaft. The bolt spacing for the tranny mount will accomodate 3-3/4" to 4-1/4" bolt pattern on the transmission. For TH350 application.

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Solid GM Transmission Mount
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                        This transmission mount is made of steel and is a direct replacement for the rubber mount used on GM manual, TH-350, and Powerglide transmissions (except TH400). 

Used where typical rubber mount is likely to fail due to flexing. Must be used in conjunction with solid motor mounts.

Rubber GM Transmission Cushion
(Part #91018016)

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

  • Meets or exceeds OEM specifications 
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Bolt-In Crossmember Ends
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                        If you don't want to weld on our engine or transmission crossmembers, use a pair of these bolt-in ends. These slip over our round tubing crossmembers and bolt to the frame. 
Moroso Performance 62600 Solid Transmission Mount
(Part #54562600)

This solid transmission mount from Moroso Performance must be used in conjunction with Solid Motor Mounts to prevent breakage of engine block and transmission case to torsional stress. This sturdy mount is made from 3/16" steel and features slotted holes on top for transmission mounting and threaded nuts welded to bottom for cross member mounting.

  • Replaces stock OEM-style soft rubber mount to eliminate linkage binding, driveline misalignment, and unwanted transmission movement
  • Black Zinc Finish
  • Steel Construction
  • Sold Each


  • 1958-'88 Chevy with Powerglide
  • TH-350 and TH-400
  • All Borg-Warner, Muncie, Saginaw, Chrysler 4-speed and Doug Nash 5-speed Transmissions, except 1982-'92 Camaro and Firebird