speedo gear

[trash]

Is there a chart somewhere to find the correct speedo gear?I have 5.13s with 37"s and it would be nice to know how fast im going.Ben

[ThrillHouse]

Re: speedo gear

this is the formula to figure your speedo gear: current gear teeth devided by old gear ratio x new gear ratio = new speedo gear or old tire dia. X old speedo gear devided by new tire dia. = new speedo gear

[Lars]

Re: speedo gear

Try this: http://www.broncohio.com/tech/calculations.html

It has the Ford part numbers for the speedo gears as well. That's an ancient web page though; 10 years ago Ford still sold those gears, don't know if that's true anymore.

[Daddy4zack]

Re: speedo gear

i saw those on one of the websites..They were color coded for different ratios.. I knew i could find it..
http://www.wildhorses4x4.com/product...nco_Dash_Parts