PDI 3.91 Diff Ratio Crown Wheel and Pinion sets 76/78/79/100/105 and 80**

First question is “Are the strong enough to consider fitting into my Landcruiser?”

Yes – from all installs they have proven themselves and are when fitted to Chris Hawkins HDJ79 Landcruiser which has done a 10.98sec ¼ mile. With these diff gears fitted he has managed to break two 4340 chrome moly axles when launching. “Can say the PDI gears are pretty bloody good now mate”

These crown wheel and pinion sets come with solid pinion spacers for front and rear diffs. This order is for a front and rear set together.

The diff ratio change is recommended for the following models:

VDJ79 – same ratio

HDJ100 / HZJ105 / HDJ105 manual transmission – use VDJ79 bearing kit (front and rear)

HDJ79 / HDJ78 – use VDJ79 bearing kit (front and rear)

80 series** using 100/79 centre and 80 side gears in rear. Front is a direct fit. Use VDJ79 bearing kit (front and rear).

These have been installed and tested in a number of Landcruisers boasting in excess of 300rwkw and 1000nm. They have shown to be more than capable of the task and perform very well.

For those wanting to run 3.9 ratio, which is ideal for auto setups or if running 35in tyres, we now are stocking 3.9 ratio crown wheel and pinion sets.