Don't weld a front axle.
First, most of your weight is on the front. Know how a differential works? The same torque goes to each tire. That's hard to understand. If a front tire is slipping, the other front tire gets no torque delivered to it--the slipping tire spins. It's a four-wheel-drive though. With 60% of the weight on the front, a front tire is not all that likely to slip. Normally, the front is level, the rear axle is doing most of the travel and a rear will slip first. I have lockers on both ends of my truck. I did the rear first and it made a huge difference. I did the front later and barely noticed it.
You have an axle with joints weaker than your great aunts hip. It's stupid to weld it. In my ten years on here I would say a newly welded axle lasted less than a month before the owner decided to move on to other options.
Wheeling is about having fun. Don't set yourself up as a suicide D28 bomber.
And 90% of D35 wreckers don't have their shit set up right. I spent a weekend standing on my throttle with a 4,0 and 35s and never hurt the locked D35. I've had a D35 since 2002 with a 4.0 and a locker and 31s and I'm not nice to it. I had one failure and it was a yoke clearance issue and another was a maintenance issue. I could have adopted the D35 is shit attitide and dumped it. I have enough money to put in Rockwells if I want. But I didn't. If you dont have 35s and a V8 and you are busting things, you aren't setting your axle up right.