Yeah, I never go out by myself, hence how that pic was taken. That trail got way worse than we were expecting and that spot just sank when I tried to go over it. That was also on skinny little 235 all terrains that were completely useless. I just want to do something so the truck doesn't get stick so easy. I've already gotten some bigger 31x10.50s so that helped.
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I used one of these in my 98 2wd LS Blazer. I don't go off roading with it, but mainly needed it to get up the boat ramp at one the lakes I go to.
The ramp is very steep and by the end if the day is cover with mud. My little Blazer with the peg leg Differential would be smoking the tire trying
to pull the trailer out of the water and up the hill. With the locker installed it seldoms spins the tires now. They are easy to install and have very
good driveability on the street. Mine has been in since 2003 and well over a 100,000 miles without issue. I don't think they make one for your
front differential though.
https://www.summitracing.com/int/par...t/model/blazer

 

There was a Loc-Rite locker that was available for the front IFS, I just sold one recently. They aren't being manufactured anymore that I'm aware of. You could try finding one though. The only real option that you have available to you is to SAS the front differential. There were a few limited slip carriers manufactured for the front also so you might try locating one of those. There was a few of them manufactured for the folks on the old ZR2.com site. Have you given any thought to adding the Bravada tube and axle to your setup? That'll run you about a $100.00.

 

I'll look into that. Yeah, actually, I have thought about the Bravada tube, but I couldn't really find much info on it. What does it improve in the truck? What parts would I need and what is involved?

 

What you'd need is the axle shaft and tube. It replaces the passenger side one that has the disconnect and lets both wheels drive full time.

 

Oh okay! That sounds exactly like what I want for the front then. What do you do with the actuator, cable, and stuff?

 

So wait, from doing a bit more research, I saw that the Bravada mod basically takes out the actuator on the front diff and makes the axle live all the time. Could that actuator on the diff not be working and that's why only one front wheel spins?

 

Nope. The front drive axle is an 'open' differential meaning that there is no locking mechanism to engage if one side starts spinning.

Now, the way the front axle engagement works is that the passenger side axle is not connected to the output on the passenger side of the front differential unless the cable to it is pulled.

This means that with the passenger side not connected to the differential, the diff output will spin free with the drivers side not rotating even if the transfer case were engaged.

That you see that one of your front wheels spins means that the front axle and the engagement of it are working correctly.

You should be able to swap out the rear axle with one of the same gear ratio but with a locking differential by searching wrecking yards. That will help a lot and be the same as the best you could have gotten from the factory.

 

The locking rear differential will already have a tremendous effect on traction.

Else for the Blazer to become a real off-road and go-everywhere a winch with some pulleys is probably the cheapest way to pull through any kind of terrain.

 

And here is a Bravada shaft kit: https://www.outfitterdesign.com/bravada-shaft.html