Re: Rear differential lock? 1992 Sierra 2500

Unless someone installed a locker, no, it doesn't operate any differently than when in 4H or 2H

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.