I don't think HP is that big of a deal. I haven't really had any problems with my front shaft, I will admit that offroad I just pull it into 2wd when I am going to exceed 10MPH though. It has been good about letting me know how fast is too fast.

My brother has the toy 80series e-locker center section in a mini truck front end. it only took about a day to do and turned out nicely. So he is High pinion and it is nice, but not THAT nice. The center section will run you over 900 bones. A mini truck axle about 200-250. high steer or crossover will be another couple hundred I just didnt like the width on this axle. All said and done I would budget about 1500 for a HP toy 80 series with electronics and stuff, or about 1200 or so to make a Dana44 work with nice steering and such. Its really sixes, because you have expenses both ways. Doing it again, I might have tried harder to find a 80 series axle with e-locker complete. Its a tough axle, only problem is gearing options. you pretty much got 4.10, 4.56 4.88 and 5.29. This is hard to mesh back into the Dana/GM world of 5.13 and 5.38. Although a 80 series can have upgraded birfs and inner shafts don't forget that the R&P doesn't get stronger at the same time. If you go toy, I say stick with lower ratios, not the 5.29s.

Well that is all I have to say for now.

Always take everything I say with a grain of salt.