It's for my 2000 silv 5.3 with 3.42's

 

Steal it

 

Find a buddy with a welder.

 

Buy a used G-80 for the cheapest way. I recommend a Tru-Trak though....

 

Where is the cheapest place to get a tru trac or or similiar locker. I plan on getting 3.73's in the process. I might as well change the gears while im in there... How many spline are these axles

 

randy's ring and pinon, drivetrain direct

 

Ron's Machine is a favorite around here also

 

You have 30 spline axles Sir. Also, to ease your install if you do it, 3.73 gears use 0.032"-0.033" pinion shim.

Also, Yukon has recently released their "Dura-Grip" which is basically an Eaton posi. It is cheaper than a tru-trac even.

 

Lock rite or ez locker.
If you're gonna change gears I'd go with a tru trac personally.
Absolute cheapest would be the "Lincoln locker"

 

Those actually work really well for the$ just be sure to but the hardend pin!!!