Replace Mazda Dust Cover on Driveshaft

This concern is likely to occur when driving at speeds 37 – 50 mph with the ATF at normal operating temperature. The noise is caused by stick-slip between the oil seal at the transaxle and the dust cover of the driveshaft. To correct the issue, the thickness of the dust cover has been increased.

You may encounter a 2012-2018 Mazda3 vehicle equipped with an automatic transmission with a complaint of a squeak noise from the right front driveshaft at the transaxle.

This concern is likely to occur when driving at speeds 37 – 50 mph with the ATF at normal operating temperature. The noise is caused by stick-slip between the oil seal at the transaxle and the dust cover of the driveshaft. To correct the issue, the thickness of the dust cover has been increased.

Replace the dust cover and the transfer oil seal with modified ones according to service manual instructions and verify the repair.

P/N                                  PART

FTH1-25-722................. dust cover

FZ01-27-238.................. oil seal

D651-33-042A............... lock nut

T060-26-169A............... snap pin

FTU8-22-540................. boot set, inner joint, Mazda3 with 2.0L

FTC4-22-540................ boot set, inner joint, Mazda3 with 2.5L

About the Author

Information courtesy of Mitchell 1

Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.

Mike Mavrigian

Motor Age Editor

Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of  specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.

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