got rocks I dont think that high pinion in the rear has a chance of living with over 300 HP the high pinion is weaker that the standard third member when run in the rear of a truck since it is running on the coast side of the ring gear instead of the drive side like it does in the front. And it is going to be very hard to keep axles in the front with that much power if you dont just pamper it and then what is the use of having that much power. I would say get a 60 front and cut down the long side to match your yota rear and have a new inner axle made. Toyjoeta There is know way you are going to get a Yota axle to hold up to 400 or 500 HP you can break 60s with that kind of power on tap.
