speedo gear

Anonymous · Post by **Anonymous** » Fri Apr 06, 07 11:02 pm

I need a new speedo cable for my car but I will also need to change the actual speedo drive gear. Have been on yearone and there are about 20 different gears to choose from. How am I gonna tell wich one I need?

Dave-R · Post by **Dave-R** » Fri Apr 06, 07 11:06 pm

I have a maths spreadsheet for most things. I don't know why you guys don't download them more?

http://challenger.mpoli.fi/web/AUTOMATICchart.xls

Or if it is a 4-speed;
http://challenger.mpoli.fi/web/4SPEEDchart.xls

Just alter the black numbers at the top to get your tyre size and everything else you need to know.

Gareth · Post by **Gareth** » Fri Apr 06, 07 11:07 pm

Pinion part numbers here.

http://www.moparts.com/Tech/tech/pages/speedo.html

Anonymous · Post by **Anonymous** » Fri Apr 06, 07 11:17 pm

Cheers Guys, comes up as 42.71, so I guess it would be a 43 tooth gear.

Dave-R · Post by **Dave-R** » Fri Apr 06, 07 11:26 pm

I am quite proud of that spreadsheet.