Transmission speedometer gear

[pflaming]

I changed my axle from 4:10 to 3:73. Now I need to change the cable gear to correct my speedometer. What do I get and where?

[Dennis46PU]

If you have a parts book, they had a gear that matched for the differential ratio.  They were usually listed at the end of the transmission section.  Once you have the number you need try one of the obsolete parts dealers.  Yyou might have to change both gears in your transmission to get there.  Also I have used reduction box adapters on big trucks that mounted to the ouutput of the transmission.  They basically had gears inside of the small box to get your calibration where you need it.

[DJ194950]

1 hour ago, pflaming said:

I changed my axle from 4:10 to 3:73. Now I need to change the cable gear to correct my speedometer. What do I get and where?

http://www.yotatech.com/f116/mechanical-speedo-correction-box-install-pics-195986/

You may want to read this forum, on this subject!

DJ

[Reg Evans]

I had one of those made for my 52 ( Old Yeller ) and then found out I couldn't use it because the E brake stuff was in the way.

[Dennis46PU]

I had the same problem Reg.  Different setup on the mechanical gear, but I slightly modified my linkage to clear it.  The gear reduction box might take a little more room, but they might have a longer section for the end that screws onto your transmission.  It's worth the phone call to find out.  

[pflaming]

Well it seems a gps is in order.