The tie rods and tie rod ends can be upgraded to a much more robust set-up using parts for a Ford F-150. Then carry the OEM parts as emergency spares, which will probably never be needed.Tie rods (specifically the adjuster) are the weak part on Isuzu's, luckily they are cheap as dirt and take up almost no room.
If you are starting with a vehicle that is good shape with up-to-date maintenance, you likely won't need many spare parts. I carry few parts and more "supplies." What I carry depends on how far I might have to walk if my off road adventures go awry. For trips I don't want to or can't walk to "civilization," I carry all the typical fluids (transmission fluid, brake fluid, motor oil, coolant,) belts, and hoses, including lengths of heater hose and vacuum line. Zip ties, electrical tape, electrical connectors, alligator clips, fuses, duct tape, a roll of that tape used to temporarily seal up radiator hoses, a few feet of 16 gauge wire. A can of fix-a-flat and a good tire repair kit. I always have a bar of fels-naptha soap and a tube of Seal-All. Twice, I have repaired holes in a gas tank, and once patched a timing chain cover on a 350 Chevy with soap and Seal-All. A couple of extra lug nuts. I replaced the front axle drive flanges on my Trooper with Superwinch selectable hubs, and I carry the flanges for emergency repairs. I do the same with other parts I have replaced such as ball joints, brake pads, u-joints if the parts are capable of getting me home. And of course tools. But that is a different discussion.i am trying to refine the assortment of spare parts I carry for the Isuzu Troopers I have. Any of you that have Troopers what do you carry for spare parts?
Spare motor that doesn't burn oil like it was gasoline