Replacement Screw-In Ball Joint Dust Boot, K772 Application
Replacement Screw-In Ball Joint Dust Boot, K772 Application
Speedway Motors

|

#91034006

Replacement Screw-In Ball Joint Dust Boot, K772 Application

  • Replacement for screw-in K772 type ball joints
  • Reinforced metal support ring integrated into base of boot
  • Fits upper or lower
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$6.49

/each

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Product Summary

Universal Fit, Rubber

  • Replacement for screw-in K772 type ball joints
  • Reinforced metal support ring integrated into base of boot
  • Fits upper or lower
  • Sold Individually
  • Rubber material
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Key Specs

MFG. Part #91034006
BrandSpeedway Motors
Material TypeRubber
See more specs

Need To Know

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855.313.9176
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Speedway Motors 91034006 Details

These replacement dust boots are for screw-in type ball joints, like the ones featured in our Mustang II tubular control arms.  They work with K772 type ball joints. 

  • Replacement for K772 type ball joints
  • Fits upper or lower
  • Metal support ring integrated into base of boot
  • Sold each

Specs

  • O/D at base approximately 2-3/8" (60.32mm)
  • I/D at base is approximately 1-13/16" (46.03mm)
  • 5/8" (15.88mm) center hole diameter
  • 1-3/4" (44.45mm) height

Speedway Motors 91034006 Specifications

KEY SPECS
MFG. Part #91034006
BrandSpeedway Motors
Material TypeRubber
GENERAL
Sold in QuantityEach

Ratings & Reviews

4.5

57 Reviews

Overall Assessment

Customers find the product high quality, durable and practical for wide-ranging applications, from trucks to tractors. The product seems to have a superior fit to Original Equipment Manufacturer (OEM) options, with several customers noting how well it fits like the original. Its usability and practicality are further praised due to the product's adaptability to modifications if needed, enabling an ideal fit for various vehicle models. Some users have mentioned that the product required adjustments to fit specific models. Critics regard the thickness and reinforced base of the product as strengths, underscoring its material quality. However, some users reported issues concerning size compatibility and longevity. Overall, product recommendation is strong, particularly due to its confirmed quality and precise fit.

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4.5

57 reviews

5

47

4

4

3

0

2

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1

4

Most Liked Positive Review

5.0

Made it fit

I bought this for my Shelby CSX Cobra. I had to take a small belt sander to the inside and remove some metal. I took a little bit at a time until it snapped on. I searched for this boot for a while with no luck. I ordered one from Shelby part's distributor and it didn't fit. I ordered 2 in case I messed one up. With the Cost of shipping I didn't want to take a chance of having to order a second one. Shipping was fast

Most Liked Negative Review

1.0

They don't actually fit

These do not fit the Mustang Ii control arms I bought from Speedway motors. The sealing surface is 1/8" larger than the ID of the sleeve it is supposed to fit. They are also about 1/8" taller. Customer service sent me replacements that they removed from some control arms that did fit.

Filter by Ratings

Perfect part for what I needed it for!

5.0

2 months ago

Cuda Pup

South Bend, Indiana

Verified

Speedway Motors always delivers with their parts. I trust them with my prized possession to sell and deliver the very best parts. A+ experience every time! Thanks

Would Recommend

Yes

5.0

2 months ago

Dan

Perry mo

Verified

The original part sat for a couple of years before I started assembling the ifs. It was cracking at that time. This boot looks great. I still don't like the idea that boots aren't held in place. Bought different upper ball joint that had a wire retainer to hold in place. Modified the lower control arm to hold boot in place

Would Recommend

I would buy this again.

5.0

5 months ago

DB Cooper

Chandler, Az.

Verified

Exact fit for my project

Would Recommend

I definitely would buy this product again

5.0

5 months ago

Tommy Pitts

Laporte, Texas

Verified

The parts I ordered were correct and easy to install

Would Recommend

Good product

4.0

10 months ago

FH

Denver

Verified

Looks different from original but seems to work

Would Recommend

I absolutely buy again!

5.0

2 years ago

Dean

Hesperia

Verified

Speedway parts are top quality!

Would Recommend

I will buy this product again!

5.0

2 years ago

Dean

Hesperia ca

Verified

The snug fit is good !

Would Recommend

Correct fit

5.0

2 years ago

Deer Trail Dude

Deer Trail, CO

Verified

I purchased an all-in-one front suspension kit for my 1973 Road Runner. The upper ball joint boots in the kit weren't even close. These fir perfectly!

Would Recommend

Excellent

5.0

2 years ago

Dogger

Gilbert az

Exact replacements, Fit perfectly and fast shipping

Would Recommend

Seals WAY better that OEM. Very pleased.

5.0

2 years ago

Diffy

vista Ca.

Verified

Ball joint grease seal, much nicer than stock.

Would Recommend

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Showing 10 of 57 reviews

Questions & Answers

5 Questions • 5 Answers

are upper and lower boots same part #

by James

• 8 years ago

1 answer

View Answer

one of the reviews said these don't fit the mustang II tubular control arms that i purchased. i noticed that when i originally installed them. they have since cracked, that's why i need 4 new ones. if these don't fit properly where do i get ones that do fit properly?

by ray

• 9 years ago

1 answer

View Answer

Will these boots fit my TCI IFS suspension?

by gary

• 10 years ago

1 answer

View Answer

What is the outside diameter of the boot?

by kris

• 10 years ago

1 answer

View Answer

Do these rubber boots have a metal ring moulded in the flange

by waddo

• 11 years ago

1 answer

View Answer

5 of 5 questions shown

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