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Product Summary

Many Transmissions, 5.25" Overall Length

  • This heavy duty polyurethane transmission mount is a direct replacement for original GM mounts
  • Fits GM manual or automatic transmissions
  • Features a built in safety lock to prevent separation
  • Slotted mount flange will accommodate 3-3/4" to 4-1/4" transmission bolt spacing
  • Studs, nuts, and washers are included to simplify installation
See more details

Key Specs

MFG. Part #91025820
BrandSpeedway Motors
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91025820 Details

  • Heavy duty 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 several applications including Powerglide, TH200, TH250, TH350, TH400, 700R4, and Saginaw, Borg-Warner, and Muncie transmissions

Specs

Finish may vary from the photo on the website

Speedway Motors 91025820 Specifications

KEY SPECS
MFG. Part #91025820
BrandSpeedway Motors
GENERAL
Overall Length5.25"
Overall Width1.990"
Overall Height1.820"
Centerline of Holes4.00"
Bolt Hole Pattern3.75" - 4.50"
Hardware IncludedYes
Thread Pitch7/16"-14
Sold in QuantityEach

Ratings & Reviews

4.8

57 Reviews

Overall Assessment

Customers praise our product for its quality, practicality, and overall high performance. The transmission mount has demonstrated exceptional compatibility with various car models, including classic Chevy and Pontiac, aiding seamless installations. Its adaptability has been noted as a highly useful feature, catered to multiple set-ups. The material quality is described as exceptionally durable, effective in reducing noise transfer and limiting transmission movement. While a few mentioned minor difficulties with the installation process, the majority emphasized how easy it was to install, even serving as a superior alternative to competitors' original mounts. Customers mentioned willingness to repurchase indicating high satisfaction levels.

4.8

57 reviews

5

48

4

6

3

2

2

0

1

1

Most Liked Positive Review

5.0

Problem-solving 700R Trans Mount

The 700R4 trans I was installing in my 46 International hotrod pickup came out of an 88 2WD Suburban and had a rear mounting pad with one bolt, most of the after-market crossmembers had 2 bolt holes so this mount with 2 bolts worked great. The old mount was kind of ratty anyway, so it was a no-brainer to buy the new one.

Most Liked Negative Review

3.0

product not machined correct

Transmission mount is a good poly mount. The only flaw is the bolt holes tapped in to the mount were tapped crocked. They will work, but are border line. I am sure they are not made in the USA. I did not contact speedway about them. Like I said they are borderline.

Filter by Ratings

Yes it worked great

5.0

3 months ago

Tired iron garage

Tiffin Ohio

Verified

Bolted right in.

Would Recommend

Exactly what I expected.

5.0

5 months ago

Camaro Guy

Gilbert, AZ

Verified

Good solid mount

Would Recommend

Worked fine

5.0

5 months ago

1987_Chevy TBI-Truck

Sun City AZ

Verified

Did what it was supposed to do

Transmission Mount

5.0

6 months ago

smdgene

Cody, WY

Verified

This transmission mount worked perfectly. Thank You

Would Recommend

I would buy again

5.0

11 months ago

Hacksaw

Mousouri

Verified

Works great for me

Would Recommend

Yes

5.0

a year ago

Trav

West Virginia

Verified

Looks like it's good quality

Would Recommend

I would buy this product again.

5.0

a year ago

Geezer

Cherokee County, NC.

Verified

Parts seem to be made well

Would Recommend

I did buy it again!

5.0

a year ago

SAM

Michigan

Verified

Looks like a nice part.

Would Recommend

Will suit my needs without issue

4.0

a year ago

Beej

Lexington, KY

Verified

Installing a T5 conversion into my '51 AD and decided to go ahead and install a bushing and support while under there for an extra $150 and hour of work....Quality appears desirable, although Chinese made. My needs are not critical for this item, so I am happy with what it is.

Would Recommend

Will suit my needs without issue

4.0

a year ago

Beej

Lexington, KY

Verified

Installing a T5 conversion into my '51 AD and decided to go ahead and install a support while under there for an extra $150 and hour of work....This cushion is what it is advertised to be but noted it was made in China. My needs are not critical for this item, so I am happy with what it is.

Would Recommend

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Showing 10 of 57 reviews

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