31 X 10.5's

[paulpellini]

I have read all the Q's and A's about the bigger tire subject of which I have decided to put on the 31 X 10.5 Yokohama Geolander A/T. on my 99 Explorer (stock height). The only concern is this, I only have a 6 under the hood automatic trns. Will I need to modify the engine to keep up the speed it has now???? I do a lot of highway driving and all my off road is at the beach, so speed is of concern to me. If I do need to modify the engine what would I need to do to it? Thanks, hope you can help.

------------------
Paul

 

[Paul Gagnon]

What gears do you have and what size tires are on it now?

------------------
Paul Gagnon
Dead Link Removed

 

[paulpellini]

The engine I have in it is 4.0 SOHC V6 245cubic inch, 210hp@ 5250 rpm, 240 ft/lb torque@ 3250rpm. It is a 5-speed automatic with the O/D turned on gives me the highway 5th gear. All of the above came from the specs book that apply to it. The tires on it now are the standard stock 235/75 on a 15R.

 

[Paul Gagnon]

What gears are in the axles?

OK lets guess that you have 3.73 gears. If you go to a 31 inch tire, you will notice that the truck feels slower off the line. The SOHC 4.0L has plenty of power so it may not be that bad. Your top speed would go up and fuel economy may even improve a bit. Explorers can be ordered from the factory with 31 inch tires so it is not a difficult thing to change. Make sure that you calibrate your speedo or change to the correct speedo gear.

------------------
Paul Gagnon
Dead Link Removed

 

[paulpellini]

Thanks for your help. By the way I went to your web site. Your BLK Explorer looks great! Thanks again.

------------------
Paul

 

[bachelor25]

Paul,

I have the 31x10.5 Geolandar A/T's myself on my '96 Explorer 4.0L (160HP) V6. I have 3.73 gears (comes with the trailer tow package if you don't know the gears) and have no problems with power. I will admit that I also have several performance mods, but your SOHC engine still puts out more HP than my modified engine, and you also have the advantage of the 5speed Auto which has closer gearing than my 4speed OD Auto.

I can assure you that unless you have low gearing (less than 3.73) you won't really notice a difference. Remember though that your speedo is out close to 10% (reads 10% lower than you're actually going) from the stock tires though, so watch your speed!

 

[st0ll3n_m1k3]

Ohh Yea!

After reading this thread, and not taking the advice of the local less schwab, I decided to do it. I put 31 10.5's on my 94' eddie bower edition. Stock to the rock(besides the extra seat in the back for the kids). Fit wonderfully. I put them on yesterday afternoon. We went up 4x-in late yesterday. No rubbing, no nothing.

I do say the studded m+s toyo's are loud. But they do complete the job in a satisfactory manner. These tires gave me just over an inch of raise(29"-31" / 2 sides to the tire.

The tires really fill the wheel well. I do recommend putting a lift on your 94. But this application does work. So the initial question, will 31" 10.5" fit on the stock 15/7 rims yes, to all those others', yes 31" 10.5" will fit on your 94 eddie. Since I don't know the difference in suspention, I have no info on other edditions/ years.

 

[ryf]

going back 7 years?? theres probably a thousand of these that aren't this old Stollen!

at least its your first post! welcome to Explorer Forums.

 

[mfinger1]

Has anyone experienced any suspension issues running 31x10.50x15s on a stock XLS.
Will the stock suspension hold up under normal ( ??) use? With-in reason. Mine seems to groan just a little now, from a dead stop. Would changing to a lesser restrictive muffler help performance?

 

[pughman]

wow.....just wow.......

 

[Dopler174]

wow.....just wow.......

Tell me about it. Hey Pughman, did you ever get the other two Land terrain tires to match the ones that you bought a while back?

 

[pughman]

haha...no..not happy with the 2in. 31's, so im going to put on a 3in. bl and some 33's...i think...lol....