4x4 posi-lock axle engagement
 

i have 96 s-seires blazer it have the push button 4x4 drive well i have alot of problem from cables to the vacuum actuator now i see a kit on summit that is a manual lever and cable the kit says you can use 4lo in with out locking the front but what i want to know is if this kit is worth the money and if some one has used it

Try this, I did it to my 96 and hasn't failed me yet.

https://blazerforum.com/forum/article-submissions-discussions-47/how-homemade-posi-lock-cable-system-discussion-thread-24131/