I wonder the difference between a 40 series and 60 series proportioning valve. Toyota rereleased the 40 series prop recently for about $155usd.
But if you’ve used a wilwood adjustable, my assumption is that you could/would’ve likely had the same effect for more/less flow to the rear. Using...
Yep, that's all it is, super light and short wheelbase. Mine locks up under hard braking with 35s whereas my 60 with essentially the same exact combo wouldn't lock up. You'd have to add more weight to the truck or add-in ABS :)