I know the edge corrects the speedo but does it up to what size tires? After winter I will be adding a 6" lift to my truck and 37's.

 

it will work.. Not sure how big of tires it does, but i know it will do 37's i believe it will correct for tires up to like 46" or somthing like that..

 

I don't know that there is a limit, you just have to know the MM to enter.

 

i just ordered one for my 97 for $313 pretty happy about that just want some one else to verifiy that its will correct my speedo with 35in tires with 4.56 gears i know it will do 4.10's but no said anything about 4.56's

 

I'm pretty sure that you can only correct the 97's and 98's with a different gear for the cable. I think in 99 they went to the electronic speedo.

 

Duffman Says oh no oh crap well at least it adds power any clue what gear i need for 35's and 4.56's

 

I have 37's on my 05 and it you can adjust it for them no problem. I set mine at 2815 mm with my 37's which is a little less than the book said to do with 37's but you have to remember that every brand is going to be a little different. Mine are BFG mud terrains 37 12.50's. I actually measured my tire diameter by marking a piont on my tire and rolling my truck back until the tire had made a full revolution and then marked the distance that it covered and was able to get my measurement. I did it in inches but converted that to millimeters and it ended up being 2832mm.. But I ended up changing it a little bit becuase my speedometer said I was going a little faster than I actually was.

hope some of this helps.

 

You need to have a digital odometer to adjust the speedo with the Edge Evolution. It will give you the option of changing gear ratio and tire size during programing. If you don't have a digital odometer i don't think it will give you that option.