Jesse J wrote: ↑Wed Jul 21, 2021 5:21 am
Are you going with hydraulic steering? Because you will not be able to turn with a spool up front otherwise.
how come?
the spool does not allow for any slip in the differential between the 2 sides, when you turn the steering wheel the tires turn against each other, it will always push to go straight. The tires need some slip between the 2 sides to turn freely, the issue is compounded in 4 wheel drive, all of the tires are locked together. Unless on a very slippery surface turning the wheels will be very difficult, on a high traction surface like porous rock, concrete or asphalt it may be impossible to turn the steering wheel without extreme power that only hydraulic cylinders can achieve.
Think of it as driving in a circle, the tires side to side are parallel, driving in a circle the inside is traveling less distance than the outside so there has to be something give and that give is a tire slipping or skidding to make up that difference in distance. The axle is solid with no give with a spool allowing for that difference in distance around the circle. That is where the name "differential" comes from, the ability to allow for different rotational speeds in a corner.
Don't know how well I explained that but I tried