5th Gear Update Kit Ease to InstallDuring inspection for a repair or re-build of the Mitsubishi built 5 speed, closely examine the area where the 5th gear bearing sleeve contacts the 5th/reverse synchronizer hub. The entire kit includes only two pieces, a newly designed caged bearing and bearing sleeve (see Figure 1).įurther design changes directs the radial pressure fro the gear to a mor specified area on the bearing sleeve. Now only is it simple but also its is very inexpensive to install. Update Kit by Midwest Transmission Solves the ProblemGive the size and load characteristics of the 5th gear, correcting this problem by simply changing the gear design is next to impossible. If this situation is not corrected, it will cause the 5th gear to seize to the hub, breaking the gear teeth.
This continual pattern causes the sleeve to work loose against the tth/reverse synchronizer hub and then begin to wear into the splined area of the hub.As this wears, the preset factory clearances for end play are diminished to the point tha the 5th gear on the mainshaft bearings to heat the hub and scuffing begins to appear. Although pressures against the hub are amplified while the transmission is at high operating temperatures, they decrease significantly when the transmission cools to ambient temperature. This problem further has caused the failure of the 5th gear on the main-shaft, causing the 5th gear to seize to the 5th/reverse hub and then break.The problem is inherent, because the mating surface area of the 5th gear bearing sleeve is to small. Is you Ranger 5 Speed Noisy in 5th Gear?The Mitsubishi 5 speed used in the Ford Ranger from 1985 to 1992 has had a common problem with the 5th gear bearing sleeve wearing into the 5th/reverse synchronizer hub. This transmission will have a 12 no hassle warranty.For additional technical information or to place the order give Scott a call toll free 88 he can help you. Order our FM146 manual transmission part number MTFRD011 your cost is $933.33 plus a $250 core deposit plus freight. I have a 1989 Bronco II 2.9L V6 2WDQuestion: I’m looking for a FM146 transmission, and a price.Answer: We can provide a rebuilt dyno tested Ford FM146 manual transmission with all new bearings, gaskets, seals and syncro rings. Mitsubishi Hs U540 Manual Transmission Manual.
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