My 1999 (old body style) chevy truck ext. cab. seems to turn too far right and left. feels and looks like my tires are leaning and sounds like they being pushed/pulled rather than turning. had all ste

no body size told, extended cab or ????
ext cab is
BCM should be located on passenger side kick panel (under glove box to the right). You have to remove a panel.
2007 service manual remove it page, clear as day

Paint code should be on the label affixed to the latch end of the driver's door. Failing that, it will be shown on the option list (may be on the glove box door). Failing both of these, take your VIN number to a GM dealer and they will look it up for you.

you can check for any play in the bearing up/down or side to side
you can also rotate the tire & see if the noise follows the tire

2004 chevy tahoe 4x4 had the same problem wont turn right at idle - like no power steering , has hydoboost brake steering system , did test and found steering box bad , removed box and remove the top cover on box 4 bolts at hydralic cover and removed and found spool valve has 4 seals 1 outer was blown i replaced box with reman from advance auto about $200.00 and flushed system , drove great problem solved .

Check engine light on? Does it run normal driving it? Sounds like a vacuum leak. Check the gasket under the throttle body.

check your pick up sensors

Hi Hollings,

You description was very good, I need to ask for a specific.

When you turn to the left, the wheel is stiff like the engine is off or does it turn smoothly but the vehicle doesn't turn or seem to respond.

I'm trying to rule out broken mounts,

Also, if the wheel is all the way to the right, is it difficult turning back to the left the whole way, or half way. See where I'm going.?

Please comment back your findings

Best regards
Mike

have the front wheel caster and, camber checked and, set by an auto shop before your wheel bearings fail

hub locks are worn out, especially if you cant turn them. And its not high and low. Its either auto?lock for switch style shift, or free /lock for old style floor shift. also hub seals could be worn or vacuum system not working.

It sounds exactly like a wheel bearing problem.The right side its seems would be the problem. When you turn right it puts more pressure on the bad bearing making it louder. I would suggest replacing both. If on is gone the other one isn't far off. Hope this helps