I have a 1993 Ford f150 with a 4.9 straight six. As of right now i have 2 inch taller coil springs ordered for it and i am in the research process of buying new tires. My question is should i buy a set of 32x11.50x15 or 31x10.50x15? I dont want the 31's to look too small when i put the coils in but i also dont want to take power away by putting 32's on.

 

32s are going to knock the power dow, but so is the 31s.

What gears do you have

 

stock 92 2wd F150 with 31's, looked great but definetly sucked out the power with 3.55 gears

IIRC you will need adj./offset ball joints to fix your caster after you lift it

 

I have the Superlift leveling coils on mine with 31 10.50 and think its just right. I had 32 11.50 years ago and it was alright, but didn't help with power or fuel economy. I think it looks better with the 31 10.50s anyway.

 

Ive got the spacers in front on mine and 32/11.50 tires and no noticable power loss but ive also got 351w. I think the 32s look great

 

Could you post a picture?

 

2" front spacers and 2" rear block with stock 235 tires


2" front spacers an 2" rear block with 32-11.5-15

 

I don't have any issues with 32's on my truck with the 4.9L. get 15ish mpg on the freeway (at 70-75) and 11-12 in town. Do you have a manual or automatic? I think when I calculated it out, your somewhere right between 3 and 3.15 overall gearing with 3.55 gears in your diff and 32" tires soo it's still not much worse than 2.73 gears as far as power off the line other than the rolling resistance of the tires.

 

Power loss with my current 33's and 3:55 is noticeable but not bad when unloaded. But it's a complete dog when attempting to pull a Trailer and I have the e4od and 351. Had a 14' enclosed trailer with my Polaris rzr in side and hd a hard time on a few hills but only manages to get 7mpg on the 500km round trip. Was $280 in gas lol

I'm plannin a 4:56 gear swap which will get me about stock feel when I go to 35's

 

iv got a 95 f150 with 2" leveling springs and 33x10.50 bfg's. no loss in power but i have a 351

 

This is back when I had a leveling kit and 35's.


If you have the leveling kit I would do 33's. more than likely they will be cheaper or the same price as 32's because of their popularity. then you could choose 33x12.50xR15 or 33x10.50xR15. I would recommending regearing for ANY kind of gain in tire size over factory. With 33's go to the junkyard and pick up some 4.10 gears and you're good.

 

mine sit just like midnites truck does. i pull a 18' car trailer on a regular basis and it pulls great. i do plan on going to 33" tires next fall and 4.56 gearing