Right, in front of a computer for the first time in a while. Here's my thoughts.
Step one, Download a factory service manual for an SJ50. Don't attempt any job without it. Almost every bolt/fitting/item has a procedure and torque setting and the difference between long lasting job of factory quality and a patch up you need to revisit will be how closely to adhere to the FSM.
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-Rubber seal is coming out of the ball thing on the axle that goes into the wheel.
Buy and fit a steering knuckle rebuilt kit.
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-Motor seems to be running rich and I'm using a fair bit of petrol.
-Theres a little lever next to the throttle that when you push it, it revs the motor even more, however its not connected to the throttle it look like the link that connects it is broken??
(some/all) Drovers have a manual choke. it's likely to be that and has been rigged up in some random way over the years. using the FSM baseline the carby (put everything back to factory adjustment). It's likely the choke is partially on at all times and an owner has probably artificially lowered the idle speed to compensate.
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-Some times after starting the motor i hear a high pitch scream sort of noise??
Fanbelt is loose
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- Sometimes when steering i hear a grinding noise??
Could be from a few places and isn't really indicative of a huge issue. could be tie rod ends, kingpins, steering box, steering shaft unis or steering column bushes. You might be able to find the source by spraying WD40 on/in the various steering components and see if it goes away.
Steve.