Posted by Doc Dave on Wednesday, October 10, 2007 at 08:15:37 :
In Reply to: overdrive units posted by woodman1952 on Wednesday, October 10, 2007 at 08:00:29 :
The Dennan overdrive units mentioned in the PWA article, are not available now. Dennis Gronan, who makes them, is not able to give an answer as to when, if ever, they will be available again.
Some have pursued a Gear Vendors unit to use in a similar fashion. It is also a Laycock design and can be placed between the Transfer case and rear diff like the Dennan.
Several folks on the forum here are very knowledgeable about how these perform and work, you can view the archives and see that info too.
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