I'm here,I put a 41-46 type steering box in my 37,It's a bolt in and makes a big improvement.The 37 steering wheel is keyed not splined,change the wheel or splice the steering shaft.Do spend the time to adjust the steering box once it's installed in the truck.I use a small fishing scale to measure the preload as shown in the manuals.Do not guess on this,proper preload is important .I have 6 degree castor shims cause the truck is raked,front end lower.My 37 steers a little hard,too much negative camber .Camber is adjusted by bending the axle with hydraulic equipment.The axle is forged,but bends surprisingly easy.Most truck alignment shops will do it for you,if your truck will fit on their rack,mine won't,been like this for 7 years.It tracks straight and the tires don't wear funny,so I treat it like a sore peter,don't screw with it.
