You're going to love this.

ETKA says 031 C for all years.

I have an 031A and an 031 F.  Both Bilstein, both 1075 kG, same
height.  Both have a tubular arm with engagement limited to ~3-1/2
inches.  The A is like the one from my '84 Westy -- stamped handle,
metal shield over the gears.  The F has a rod handle and a plastic
shield over the gears; and its arm is perhaps an inch shorter overall
but same engagement depth.

The jack from my '89 White Star is different.  It's made by Storzz
and its arm is a flat stamping overlaid with a taller-than-wide
rectangular-ish tube with engagement depth about six inches.  It has
a wad of tinfoil over the gears because whatever cover Storzz
supplied isn't there.

And the part number is, wait for it -- 031A.  Slow clap for VWAG.

Yrs,
d

At 04:15 PM 6/23/2015, Jim Felder wrote:
>I am trying to figure out what I have. Any other distinguishing feature
>like the length of the support shaft?
>
>Thanks,
>
>Jim