Anyone know the size of the triple square (12 point) axel bolts?

**Quattrocket** · 11-03-2008 05:01 PM

Hit a snag in the engine pull, I have no triple square bits and need to know the size to buy. thanks guys.

**infinkc** · 11-03-2008 05:20 PM

a writeup said 8mm, but i just used a 10mm one to do mine.
this is the set i used , bought it from my LPS $10 for the set of 4.

if you tried to use a torx and stripped a bolt, you are going to have a fun time fixing it.

**Quattrocket** · 11-03-2008 07:41 PM

Originally Posted by infinkc

a writeup said 8mm, but i just used a 10mm one to do mine.
this is the set i used , bought it from my LPS $10 for the set of 4.

if you tried to use a torx and stripped a bolt, you are going to have a fun time fixing it.

nah, I didnt touch it once I saw it was torx. any tips on how to get the driveshaft bolts out? their giving me a helluva time as well.

thanks by the way

**nvrfollow** · 11-03-2008 08:55 PM

I think its a 10 however the replacement bolts were a 12.

edit: as for the drive shaft bolts an airgun is the way to go

**mholme** · 11-03-2008 08:56 PM

Originally Posted by Quattrocket

any tips on how to get the driveshaft bolts out? their giving me a helluva time as well.

Clean them out first, get all the grime gone. Then make sure the triple square is well seated before putting any torque to them.

**AudiA4_20T** · 11-03-2008 09:41 PM

I use a jack as a wedge if the car is in the air, wedge the jack under the wheel so when you put force in the direction to loosen the bolt out, it grabs the jack in and stops the axle from turning, they dont need too much force to pull out

**S4 in_lowplaces** · 11-03-2008 10:54 PM

i used a torx bit, made sure it was seated, and gave it a quick hard turn and it was out. I also used the torx when i reinstalled them.

**Militant-Grunt** · 11-03-2008 11:15 PM

Originally Posted by infinkc

a writeup said 8mm, but i just used a 10mm one to do mine.
this is the set i used , bought it from my LPS $10 for the set of 4.

if you tried to use a torx and stripped a bolt, you are going to have a fun time fixing it.

Its 8mm on 2.8/ 1.8t axles. 10mm on S4s. Bolts are bigger on S4 axles.

**RedRocketS4** · 11-04-2008 07:16 AM

Some bolt sizes are different... either the M10 or M12 (M12 on my new bolts). I bought that set from o'reilly's for $5. The bit set I bought, I put a 13mm socket on the M10 bit and loosened the bolt while someone was holding the brake down. obviously, i screwed down the lug bolts before hand, otherwise, the axle will just spin. Same method to torque down the new bolts, but i had to use the M12.