Scott,

The problem is that most (but not all) 83-91 Wasser Westys came with at
least Rear Air Cond. (Mine did) (and late 84-91 mostly had Power Steering
too [mine doesn't]), so most had the THREE Grooved pulley (not two - it
just looks that way in the Bentley).  And that's prolly why VW hardly ever
sells the 1 grooved variety.

Notes on installing a 3 groove pulley:

This takes a different Pulley bolt (sorry, dealer only on this too, unless
Ron has a few bolts laying around), so yer gonna have to get that as well.
Torque Specs on the 3 grooved pulley is 258 foot pounds, a lot heavier than
the 1 grooved variety.  For additional info, see Bentley pages 13.35 and
13.42 on proper installation.  I had a buddy fashion the alignment/locking
tool (seen on pg 13.35) to hold the pulley when installing the bolt.

Although I'm not using the Air Cond., I do like the beefiness of the 3
groove pulley.  Sure won't get outa kilter on this one.

Jim Thompson
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84 Westy 2.1 * 62 Beetle * 90 Fox Wagon