Originally Posted by tobyj17
I've got the large housing... so which gears does a person order?
I would contact Speedometer Gear, Speedometer Gears, Ford, GM, Dodge 700R4
or a similar company w/the knowledge to tell you what ratio of speedo gears to use along w/whether you need to use a different speedo gear housing (not talking about the whole tailshaft housing, just the part that holds the driven speedo gear). There's a calculator you can use to figure it out what gears you need, then check to see if the housing you have is compatible w/the needed gear.
Example of the gears available are also shown at http://www.areds.com/wp-content/uplo...rs-no-tags.pdf