• 121601 Rear Differential Bushings
  • 121601 Rear Differential Bushings

Rear Differential Bushings

Manufacturer: Prothane
Part Number: 121601
Rating 3

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Price: $40.17

In Stock Ships Immediately


Rear Differential Bushings - Mazda Miata - 121601

FitmentRear Differential Bushings 121601 fits these vehicles:
  • 2 of Metal Sleeves - 60773 (.875 X .562 ID X 2.500 inches)
  • 2 of Hat Bushings - 64414
  • 2 of Lower Cross Member Washer Bushings - 69198
  • Lifetime Warranty. Prothane guarantees all Prothane Suspension Parts to be free of defects in materials and workmanship (not due to abuse, neglect or misapplication) for the total time the vehicle remains with the original purchaser of the product(s). Should the products fail to meet these conditions, Prothane will replace the product, free of charge. This excludes any and all related labor charges. The product must be shipped to Prothane (postage prepaid) along with a copy of the original receipt."
  • Cross Reference from 121601 to 11.4101Energy Suspension 11.4101
    Polyurethane.
    Price: $62.07
    Warranty: 2 Year Warranty


Prothane Differential Bushings

Improving Your Vehicle's Reaction Time

Whenever your vehicle is moving, your engine is sending power down the driveshaft through your differential. As the differential reacts to shifts in power, the OE bushings mounting it to the frame are prone to flexing. This flexing reduces the efficiency of the differential's power transfer from the driveshaft to the wheels, resulting in slow accelerations and decelerations.

The reason the OE bushings flex is because they are made of rubber. In addition to flexing, rubber is also prone to wearing down due to contaminants and impacts. Prothane, on the other hand, offers solid polyurethane differential bushings. Polyurethane is much more durable than rubber, handling physical wear and chemical contamination with equal ease. In addition to the added durability, these bushings are also much firmer than rubber. Thanks to this firmness your differential won't move around as much, instantly improving your vehicle's reaction time. In addition, Prothane covers all of their differential bushings with a lifetime warranty handled in-house here at DST.

Prothane Differential Bushings Box
Prothane 121601

Product Reviews for Rear Differential Bushings 121601

Prothane 121601



5 out of 5 based on 3 user reviews. Write a Review

Good and relatively easy to install. I wish the instructions were a bit easier to understand. Overall, I enjoy them.
5 out of 5 - Great
Megan Gates - . Prothane 121601
I replaced my 20 year old miata rubber differential bushings with these Prothane poly bushings last week and what a difference. The rear end no longer feels sloppy and provides a much better feel when shifting hard. Overall a great upgrade for the price.
5 out of 5 - Great product and upgrade!
Tim Schoeppner - . Prothane 121601
Quality product, fitted on my Miata diff perfectly. Requires high pressure to fit and you need to modify the OEM mounts by removing the rubber as these bushings will replace all the rubber in the assembly. Mods took me 15 minutes only.
5 out of 5
�ivind ness - . Prothane 121601