The main reason the Toyota box is preferred for conversions is because the sector shaft end of the gear has enough reach to make it through the hole in the frame.That is important if you plan on running a stock beam axle,etc. without totally reconfiguring the front end of the truck.They have been used for years on F-1's and proved to be bulletproof.Be aware that most kits are made to make it easy for the home restorer or rodder.I personally would prefer to run G.M. Saginaw steering boxes,but the shape and configuration tends to make them harder to adapt.I have adapted some,and take time to do right and that costs more money than most people are willing to shell out. There are Saginaw 605 boxes that have been extensively modified for use in 55-57 Chevy cars.Have not tried to use a modified one in a truck yet. They are small and compact,and would handle an old pickup truck well.The Saginaw 800 series boxes are bigger,and are the usual boxes found in later Chevy pickups [G.M. vehicles in general]are the best by far,but they are big.
