speedo gears

[69 Valiant Kid]

so if you're inbetween the 24 and 26" tire and have 3.91 gears...what speedo gear do you use....anyone?

 

[69 Valiant Kid]

i have 245/60r15's

 

[mrbill00]

38.58 from the chart at moparts.com tech section

 

[69 Valiant Kid]

if you use the equation from moparts, i have a 3.91 with 26.56 inch tall tire. the example they give on their doeswnt make any sense either. 3.55's with 27.5" tires gets you a 34 tooth speedo gear? it doesnt make sense...

 

[djwhog]

I have a 64 Dart, 3.91 gears and 2.35 15s I used this gear for me.

391 speedo gear 2538940 25.6 tire 20 40 ORANGE 52068062 20


I think you are in between sizes, but this should be very close for you?

Cope racing has a chart, if you can not find it call John at cope transmissions. He will tell you.. And has the gears too!