How Big Can I go?

[dsmitty2232]

Hello I have a 97 ranger 2wd 4.0 ext cab. I was wondering how big of a tire I could go with out lifting it and not throwing off the speedo? If I do lift it im thinking maybe only about 4 inches. What size tire could I run if i did lift it? Just looking at my options and money. If it does through off my speedo how could I fix it? Would I go get a new speedo gear?

Thanks Guys

 

[lil_Blue_Ford]

31x10.50x15 would probably be the biggest with no lift, but it'll throw off your speedo a lil.

4" lift and you could fit 33's, but your speedo will be off a lot.

There's a calculator in the tech pages for figuring out how far off your speedo will be. Depending on what speedo gear you need, you may be able to find one in a junkyard, or you might have to order one through some place like LMC Truck or through Ford.

A bigger problem might be gearing. Depending on what gears are in the rear end of your truck may limit what tires you can put on without re-gearing. If you have 3.45 or 3.56 gears, forget going to 33's without regearing. It'll be a bit of a dog with 31's. If you have 3.73 gears, it will be livable with 31's but a dog with 33's. If you have 4.10s you'll be ok with 31's or 33's.

 

[rjppunk]

Im pretty sure even with a 4" lift you'll rub on the fenders. Mine did at least but idk if the two wheel has the same clearance

 

[lil_Blue_Ford]

Interesting... I put a custom built 5" lift on my choptop and it cleared 33's just fine so I figured that the bigger wheel openings that a 93-97 Ranger has it wouldn't be an issue at all. A 3" suspension lift and I still didn't have rubbing issues really, rear tires tucked up in the fenders and the fronts would get real close, but it was ok.

 

[Sunk]

I'm pretty sure 31s will clear with a 4", it may depend on the type of lift though.

I called the local Ford dealer about getting a new speedo gear, and the one I need (21 tooth) was like $3.

 

[Ranger97XL]

can always trim the fenders....

as for the speedo any increase in size will throw it off its just a matter of how much

 

[rjppunk]

33's rub on tight corners only is what I meant.