My steering wheel locks.....
allison or ZF6?
If you have an allison, no it does not lock....you might think it does, but it doesnt. Ill bet you $25. If you can post a video of it truly locking, then Ill paypal you $25.
I cant even tell you how many people ive argued with that swore up and down their column locked, then I had them jack up the front (so you can turn the wheel with the engine off), turn the key off, take it out of the ignition, and turn the wheel. Then they get this dumbfounded confused look on their face when the wheel still turns freely in both directions. "huh!! I swear it used to lock!!!"
No it didnt!
everyone thinks their GMT-800 column locks because they either A)
assume it does, because almost every other vehicle has a locking column, or B) thinks "it wont turn when the truck is off" (forgetting that the resistance they are feeling is simply the fact that there is no power steering with the engine off)
Like I said, manual trans trucks, yes. Automatic, SUPPOSEDLY 99-00 had it, but Ive seen (driven) plenty of 2000+ trucks that didnt have it. Ive never driven/seen a 99 so I cant say that "for sure".