Outer Limits 4x4 Board

Hi all im looking at getting 4:12s for my rangie 88model im currently running 33" tyres and my engine is a 3.5v8 my questions are is this going to make a noticeble diffrence off road will I have more torque at the moment it feels like im running out of power on steeper climbs also who is the best person to deal for purchaseing these diffs I live in victoria any feedback would be greatly appreciated

Ashcroft Transmissions for the gearing.
The gearing for 33s will be good. I use stock gearing for 33s and 4.12 gearing for my 35 to 37" tyres.

I have not had recent dealing with the 3.5 V8 as my last two rangie have been 3.9 and 4.6L V8s

But my first rr was stock gearing on 37s and it went OK still so I would say 4.11 gearing would be good. I wouldn't go lower as the strength of the crown wheel is reduced as you lower the gearing.

I have a pair of Ashcroft 4.11 sitting new unused in boxes, open to offers, can post via courier, msg me for more details