They say that Toy axles are the same as having Dana 44's and I'd agree except for the birfs. Birfs are Toys weak links I would personally not run anything under 5.29's and 35's or 37's max. Others run much larger tires on their rigs. Right now I run 4.37's (stock for my year) with an 84 5 speed and tcase. I have also converted to a 22r motor which helps in the power dept. If you lock the front your issues are compounded. I've always tryed not to start out with my tires turned, once moving the load shock is much less on the birfs.