Lug Nut Torque

[jayhawker]

Does anyone out there know the correct amount to torque the lugnuts on the F150 aluminum wheels, I have the King Ranch. I looked in the owners manual and it says 135 ft/lb which seems kinda high, on my old Ranger and the Missus Crown Vic the lug nut torque is 85ft/lb for aluminum wheels. Jayhawker

[poolvibe]

100 for 12mm lugs and 150 for 14mm

[kingfish51]

Take a look at the lug nuts. It may be on there. Otherwise I would use what it says in the owners manual.

[max mitchell]

There should also be a card wrapped underneath your jack with lug nut torque on it.

[jayhawker]

Thanks for the replies on my question. It's about time to rotate the tires for the first time and I didn't want to chance over torquing the nuts.

Jayhawker

[FrankLee]

Torque may be printed on the lug washer. This is from a '99. Your results may vary.

[LittleTow]

That pic is great! I rotate the tires on my 2003 Screw & torque to 150 Lbs. per the manual (& yes it does seem high to me to as the Ranger torque is 90 Lbs. or so). I questioned the 150 Lbs. rating a few days ago when I was checking the brakes on my father-in-laws extended cab F150 & his Haynes manual stated 95 to 103 approx. I chalked it up to the different lug nuts & went with the manual rating - good thing as I suspect there stamped 100 like the ones in your pic. When he gets back from FL it will be time for new front pads & the first thing I'll look at is the lug nut rating just for S's & G's.
ALR

[gchu715]

Originally posted by poolvibe
100 for 12mm lugs and 150 for 14mm

Is 12mm and/or 14mm the size socket I would need? I just bought an air compressor with impact driver so I was trying to figure out what size socket to get (those things are expensive so I didn't want to get an entire set if I could avoid it).

I have a 97 F-150 XLT 4x4 with the off-road (17" Wheel) package. Which size would I have?

[kingfish51]

12 or 14mm is the size of the bolt, not the nut. If I remember correctly the correct socket size for the 14mm is 13/16 or 21mm. The 12mm would probably be a bit smaller. I do suggest you do not use the air gun to fully tighten the nuts. Use a torque wrench, otherwise you will have a good shot of warping your brake rotors. I have been using a torque wrench for about 10 years now, and have yet to need my rotors turned.
You may already know this, but when buying sockets for your air gun, get ones made for impact wrenches. Regular sockets don't seem to be able to handle the hammering action of the air tools.
For your 97, you have 12mm bolts. Again I can not remember the lug nut size.

[czechyour6]

I don't have the factory lug nuts, but I do have Eagle alum wheels on my 97 F250 LD 7 lugs and the chrome lug nuts with the 60deg taper is suppose to be 110 according to Big O tires, I noticed my spare rim is flat, no taper on the holes, maybe the flat lug nuts are suppose to be torqued higher. Does this sound right?