Speedometer Ratio

[Jeff1923]

Hi!! I have an 84 D150 Stepside and just swapped my rear to a 3.55 from 2.71
Anyone know what the ratio is I need in an adapter and where to get one?
Thanks!

 

[reek]

can't say on the exact ratio but here's a supplier for 727 speedo gears. its a start.

http://www.aandatrans.com/Departments/Chrysler-727-Trans/Speedometer-Gears.aspx