Top Loader Drive Gear

GH427 · #1 (**permalink**) 02-20-2008, 07:39 PM

I was just wondering if anyone could tell me what drive gear I should have in my toploader. It is a HEH-CG code C/R 31 spline box with the large input shaft (originally out of a 66 Galaxie 428 I believe). My speedo input is on the left side of the box (i.e. on the drivers side if it were still in the original car). I can't get enough access to see it myself and would like to avoid having to remove the box just to have a look. Thanks in advance.
George H.

ccomt · #2 (**permalink**) 02-20-2008, 07:59 PM

It looks like you have or will need either the yellow 7 tooth or the brown 8 tooth depending on your diff ratio --- for more info see
Speedometer Gears

GH427 · #3 (**permalink**) 11-02-2008, 03:59 AM

As mentioned above, my speedometer input is on the left side of the box. I'm having clearance issues trying to get the late model mustang driven gear/speedo sensor in the box and be able to run the cable to the speedo. I was wondering whether there exists a right angle speedo driven gear adapter that fits in to the gearbox so that I will have sufficient clearance for the speedo cable? Thanks again for your help.
Cheers,
George H.