David,
Are these just standard tapered roller bearings?
If so you can probably just read the fine print stamped on the edge of the
inner race and cross reference against a decent bearing manufacturer like
Timken.
Or, plug the number into Google and see what happens.

I found replacement bearings for my trailer by using this technique.

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of
David Marshall
Sent: Friday, October 05, 2007 4:04 PM
To: vanagon@GERRY.VANAGON.COM
Subject: HELP: VW LT 4x4 differential bearings needed!

Yes, I realise this isn't Vanagon related, but it is
the Vanagon's big brother we're talking about  so it's all in the
family and I am *stuck*  :-(

I am rebuilding the rear
differential for my 1993 VW LT 4x4 - I have all bearings and seals except
for two of them... of course VW Canada / VW USA can't get 291 prefix parts
and BC Bearing here in town can't cross reference these bearings from
their size.

On the differential housing is:

HURTH
AXLE
MOD NO 103 A 59
Serial Number R29778 91
HURTH AXLE
38002 ARCO (TRENTO) ITALY

It seems that since this was built,
Hurth and Clarke Axle merges and then Dana bought the lot up... Dana had,
or at least the people I was speaking to, had no idea what the heck this
axle is or where to get parts.

The part numbers are

291-525-193-B
 291-525-193-A

These are the bearing that are on either
side of the differential - ETKA illustration 58-40 for the 1993 VW LT
4x4

The list has helped me out of tight spots before and I
really look forward to any leads that anyone can get me.

David Marshall

http://www.hasenwerk.ca
http://www.fastforward.ca

Box 4153, Quesnel BC, Canada V2J
3J2