what does a 29x9.50x15 convert to in a metic tire?

235/75/15? 255? 265?

trying to figure speedo pinion tooth count.

i have a 235/75/15 with a 3.55 33 tooth

going to pop on some 29x9.50x15 mud tire. need to correct speedo

http://www.forabodiesonly.com/mopar/atta...mp;d=1384721044

You need a 32 tooth

255/70/15, 29.1" tall, as stated 32 should do it.

thanks guys.

I have the 32 pinion yea!

I would put a piece of flat stock across the top of a rear tire & measure the distance from the bottom side of it down to the ground for an exact diameter measurement. Better yet is out in a parking lot to get a rear valve stem at 6 0'clock & hook your tape inbetween 2 bricks at that point then roll the car forward in a straight line till the valve stem is back at 6 0'clock then pull the tape forward & measure that distance then divide Pi (3.1416) into that number for rollout (which is what the speedo/odo will see) as tires ain't exactly round (loaded). Be sure to jack up the car as high as you can on the dr side to minimize fluid loss for the pinion change

Better yet, paint a dot of enamel on the center of the tread and roll the car until two paint dots appear on the ramp...measure between them for the most accurate roll out then divide by pi to get the working diameter.

Don't trust conversion charts, measure your tire for more precise speedo calculations.