We would love to help @ Cruiser Outfitters. We've stocked high quality install kits for decades and are a Mud supporter for many years too!
This is the front for Nitro (or other) 29-Spline pinion gearsets
Toyota Land Cruiser Ring & Pinion Gear
cruiserteq.com
Rear:
Toyota Land Cruiser Ring & Pinion Gear
cruiserteq.com
If you have 29-spline front R&P, you'll also need the conversion flange for a 80 Series (as they come 27 spline). We have those too!
Cruiser Teq is the premier provider of high quality OEM, Japanese, and aftermarket Toyota Land Cruiser parts and accessories.
cruiserteq.com
In-Stock and ships tomorrow!