Does any one have an experience with Ashcroft's underdrive ?

I'm thinking of installing one to get total ratio of 1:200
On my D110, 35” tires, with 1:4.10 ratio in the diff.
What's your say about it ?

Does it require to strengthen anything else ?
the Axles are allready heavy-duty (Maxidrive).

any commect with be highly appreciated . . .

10x
Erez.

There is always the option of changing the transfer case low range ratio. I would have a chat with Paula at maxidrive regarding that one.
http://www.4wdworld.com.au/products/maxidrive/

Get the underdrive, I find the maxidrive almost too low for most normal wheeling. Just pop in the underdrive when you get to an obstacle then go back to regular low when you're over it.