ques: what are the spec's for our factory wheel lugs? i've search but can't find..

[bakes]

the answer.

Just trying to figure out the increase in length I need to purchase when running 5mm spacers.

Thanks in advance!

[lswing]

Here...5mm is just right for a flush offset (for stock wheels). My Harmann reps have the 5mm offset built into the design, very nice.

http://www.rs6.com/showthread.php/24403-definitive-tire-wheel-and-offset-thread/page6

[Bigglezworth]

Up to 3mm okay with stock lugs. Anything larger and you should be increasing the length of the studs by a dimension that matches or exceeds the thickness of the spacer plate.

[bakes]

Up to 3mm okay with stock lugs. Anything larger and you should be increasing the length of the studs by a dimension that matches or exceeds the thickness of the spacer plate.

What are the specs of our stock lugs? I think it's something like M14-1.5 length 22.3 hedx 17mm? Is that correct. So I'd need to get 27.3 long lugs??

[Bigglezworth]

M14x1.5 is the dia/pitch. No clue on the length. Can't check right this second. Just remove one of your own and measure. Double check your shank length for ordering new against your existing.

[bakes]

after further searching I belive our stock lugs are 27mm long so I need to grab 32mm lugs.

[hahnmgh63]

I was going to say 28mm so 27mm would be in the Ball park.

[SteveKen]

Stock: 27mm, M14 x 1.5, ball seat radius 13mm (R13) The ball seats are washers which makes torquing much easier.

Achtuning/Hartmann is the only place I've found that has longer bolts with the washers integrated.

[Bigglezworth]

27mm long is accurate. OEM & extended for 10-12mm spacers.

15518

[bakes]

Thanks everyone for the help!