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I bought a winter beater mkv Jetta that needs some work. I finished up rebuilding the rear and now I'm moving on to the front. It needs hubs, and according to the interwebs, the bolts are metric 12 spline. I did some Googling and can't figure out if an m12 triple square is the same thing or not. I don't think it is, but everytime I searched for an m12 spline socket I kept getting results for triple square.

I'm new to these German cars so excuse my ignorance. Any help would be appreciated.
 
Posts: 2690 | Location: Baltimore | Registered: October 22, 2008Reply With QuoteReport This Post
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I found SAE #12 spline sockets in 3/8" drive.
https://store.snapon.com/Shall...-Socket-P633907.aspx


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Posts: 5685 | Location: Ohio | Registered: December 27, 2008Reply With QuoteReport This Post
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Spline and XZN (Triple Square) are not the same thing. Or rather, XZN is a type of spline drive. XZN has triangular splines, and generally when someone say "spline drive" they mean rectangular splines, like a transmission input shaft or CV Shaft.

However, I pulled the VW Manual and what you actually need is an XZN. Amazon sells a couple sets with several common sizes for ~$20. like so

FWIW, the manual calls to use new bolts on the bearing housing and torque them to 70NM (52 ft-lbs) + 90 Degrees.
 
Posts: 158 | Location: Tampa | Registered: August 14, 2010Reply With QuoteReport This Post
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BelMetric https://www.belmetric.com has all kinds of metric bolts, nuts, studs.
 
Posts: 8759 | Registered: March 24, 2004Reply With QuoteReport This Post
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Spline Drive/Triple Square is what you are looking for, like this used one on ebay. These fasteners are used a lot on German cars instead of Allen bolts.

https://www.ebay.com/p/Vintage...=142631447535&chn=ps

FTSM8C is the Snap-on part number for the one that fits an 8mm bolt.

The newer part number for these is FTSM8E.

https://store.snapon.com/Tripl...-Socket-P631925.aspx

Here is a whole page of them out of the catalog.

https://store.snapon.com/Tripl...Sockets-C796471.aspx


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Posts: 9495 | Location: NE GA | Registered: August 22, 2002Reply With QuoteReport This Post
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The wheel bearing assembly to bearing housing bolts on that Jetta are 12mm.
 
Posts: 158 | Location: Tampa | Registered: August 14, 2010Reply With QuoteReport This Post
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Awesome, thank you everyone. I bought a triple square set when I got this POS and I thought it would be weird if those bolts were something different. This car has been an adventure for sure.
 
Posts: 2690 | Location: Baltimore | Registered: October 22, 2008Reply With QuoteReport This Post
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quote:
Originally posted by dogmush:
Spline and XZN (Triple Square) are not the same thing. Or rather, XZN is a type of spline drive. XZN has triangular splines, and generally when someone say "spline drive" they mean rectangular splines, like a transmission input shaft or CV Shaft.

However, I pulled the VW Manual and what you actually need is an XZN. Amazon sells a couple sets with several common sizes for ~$20. like so

FWIW, the manual calls to use new bolts on the bearing housing and torque them to 70NM (52 ft-lbs) + 90 Degrees.


Thank you for the info! Just got my torque wrench back from pmel so she's gtg. Lots of one time use bolts on this thing!
 
Posts: 2690 | Location: Baltimore | Registered: October 22, 2008Reply With QuoteReport This Post
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quote:
Originally posted by AirmanJeff:
Awesome, thank you everyone. I bought a triple square set when I got this POS and I thought it would be weird if those bolts were something different. This car has been an adventure for sure.


Prepare to be weirded out then.. VW/Audi use Triple Square, Torx and Allen head bolts. That is one of the reasons I dislike the cars and working on them.





Dripping water hollows out stone, not through force, but through persistence.
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Posts: 10192 | Location: Land O Lakes, FLA | Registered: June 18, 2006Reply With QuoteReport This Post
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quote:
Originally posted by Rotndad:
quote:
Originally posted by AirmanJeff:
Awesome, thank you everyone. I bought a triple square set when I got this POS and I thought it would be weird if those bolts were something different. This car has been an adventure for sure.


Prepare to be weirded out then.. VW/Audi use Triple Square, Torx and Allen head bolts. That is one of the reasons I dislike the cars and working on them.


I had to buy a bunch of torx bits too (good ones, not the junky chinese crap). These cars are an adventure for sure, but I only paid $100 bucks for it. I'll probably end up putting about $1500 into it, so I'll have a decent winter beater for under 2 grand with all new brakes/hubs/shocks/struts and other misc things (needs headliner and other smaller interior items). Car has about 110k miles on it and it's the 2.5 motor which I have heard is the most reliable of this generation.
 
Posts: 2690 | Location: Baltimore | Registered: October 22, 2008Reply With QuoteReport This Post
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