Gearhead, the '701/2-81 F body front suspension is one of the best designed assemblies ever. It WILL handle better than a Mustang II. And depending on the Mustang II used, as I said, some are JUNK, you should see a difference. But narrowing it could change all that. I installed mine as it was on the car, set up with the ride height exactly the same as it was on the Camaro, front and rear. But it is UGLY and it takes much more skills to do it. Many people can, but with todays kits, why bother.
As for the slip joint on the rack....that is the hackest, joke of a way to do it, I jsut can't believe it. I have seen that and that is the WRONG way I was talking about. Why do you think NO manufacture has ever done anything like that? You can't have two pieces of raw iron rubbing against one an other! That "slip joint" was designed for a collapsible steering column, not a continuously moving part! That is totally irresponsible to build something like that.
That is the very reason why people should be using the tried and true kits with detailed instructions for instalation. I am not saying that the kits (of any kind, for any application) are always right, we have discussed that point. But when you have guys THINKING that they have the smarts to design a part that keeps the dang vehicle from running into my family, that burns me up. It's like the guys who make shock mounts thinking "they don't hold the car up, so they don't need to be very strong" not understanding the + & - forces imposed tens of thousands of times a minute. Or the guy who makes motor mounts like all they do is hold up the motor, not thinking about the torque the motor will apply to it. Regarding the STEERING and BRAKING of the car/truck he should leave the thing ALONE!!!
Your last paragraph makes sense.......
"The main advantage to the muskrat is that the kit versions come made to fit for your particular aplication. It's trading time for money. It's also a more compact design which allows it to be used more readily in 30's, 40's vehicles"
In other words , The kits are made to fit properly. The problem is many guys not "trading their time for money" havn't the knowhow to make the thing work properly.