buckwheat Posted September 13, 2015 Share Posted September 13, 2015 I thought I had done my research, but I must be missing something. I changed my truck to 4.10 gears and 31" tires. Which meant my speedo was off. I figured out I needed a 37 tooth (teeth?) long speedo gear. Bought it and went to install it. Which is where I get confused. I know I need to index the housing so that the speedo gear makes contact with the drive gear in my transfer case. But I have tried 3/4 of the possible options and can't get it to work. I took my truck for a test drive after each rotation of the housing and my speedometer gauge never budged. The only option I didn't try wouldn't work because the housing would not sit flush against the transfer case. Right now I have the housing indexed so that the 35-38 (I think is what the numbers were) is closest to the ground. Is this the correct point for it? Does anyone have a photo somewhere of exactly how the housing is supposed to be oriented? Also, how likely is it that I snapped/ broke my speedo cable while twisting and moving it under the truck? Thanks in advance. Link to comment Share on other sites More sharing options...
64 Cheyenne Posted September 14, 2015 Share Posted September 14, 2015 First, verify that the cable isn't broke. Might have to pull the cluster to verify, or spin the end with a drill, have somebody check the gauge see if it's moving. I just stick the gear into the hole, turn it till it lines up with whatever index is close and either it works or it don't. Not really rocket science, the gear is on an eccentric, look at it, turn it, and see which way best engages the drive gear in the output. Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 14, 2015 Share Posted September 14, 2015 http://gojeep.willyshotrod.com/HowtoSpeedoGears.htm Link to comment Share on other sites More sharing options...
buckwheat Posted September 15, 2015 Author Share Posted September 15, 2015 Thanks for the link Hornbrod. I had seen it, which is why I was really confused that it wasn't working. As a test I put a drill on the end of the speedo cable and ran it as fast as the drill could go. The speedometer never budged. So my cable is broken somewhere somehow. So I probably had the speedo gear in correctly the first time, just broke the cable. Ordered a replacement cable from Rock Auto (hope its the correct one). Why can't things be easy with my Jeep? Link to comment Share on other sites More sharing options...
HOrnbrod Posted September 15, 2015 Share Posted September 15, 2015 Why can't things be easy with my Jeep? Then it wouldn't be any fun. :yes: Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now