Speed Sensor???

[mbro]

So my speedometer decided to wig out on me and im told its the speed sensor,so after several searches I see two units on the side of the tranny, anybody know which is which, and had experience changing one of these out? I'm told one is  speed sensor, and one is rotation sensor??? Any help greatly appreciated. Thanks, Michael

[onespiritbrain]

I know of two sensors related to rotation on the trans: one is on the top driver side of the bellhousing (crankshaft position sensor) and there is a similar looking sensor on the top of the extension housing on a 4WD setup trans. I’m actually not sure what the second one is but I imagine it’d be difficult to get to it.


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[Slartibartfast]

Looks like the speedo should be on the side of the transfer case (assuming 4x4), towards the back. There's a picture in this writeup with the speed sensor pointed out.

[mbro]

Awesome, thanks for the link,now I know what Im looking for, off to the JY today!

[Slartibartfast]

Good luck! Keep in mind there are different variants of the speed sensor with different sized drive gears to suit different axle/tire combos--at least there are for WD21s, I assume R50s are the same. The gears are color-coded.