The least expensive solution is to replace the metal lines with full length heavy duty coolant hose.  I have it, it comes from NAPA, from my > www.frankcondelli.com/sales.htm < webpage >> Hose, coolant, 1-1/4"Green Stripe II, replacement & repair of 1.9 main metal coolant pipes, 28445 - $8.95/ft. CAD

Cheers,    

Frank Condelli
Almonte, Ontario, Canada
'87 Westy & Lionel Trains (Collection for sale)
Frank Condelli & Associates - Vanagon/Vanagon Westfalia Service in the Ottawa Valley
Vanagon Stainless Steel Exhaust Systems
BusFusion a VW Camper camping event, Almonte, ON, June 09 ~ 12, 2011

On 2011-08-28, at 6:28 PM, Automatic digest processor wrote:

> Vana-goners,
> 
> The steel pipes beneath my '84 2wd A/T camper are looking pretty
> crusty. I guess stuff just doesn't last...
> 
> I'd like to begin replacing all of the pipes and hoses. Are my options
> OEM, or someone's intelligently-designed post-production improvement?
> 
> Something economical and worthy of the average shade-tree mechanic
> considered a plus.