Steering Radius

This is a question for you guys who have converted your '65 and older Falcons to disk brakes, whether you use the Granada, Mustang, Maverick or after market. This would not pertain to '66 and newer cars because there is a substantial difference in the frame structure.
1: Did your turning radius change? How much? Shorter or longer.
2. What parts did you use? Another Ford or after market?
3. Will misalignment of caster and camber affect the steering radius? I will also ask this in the tech forum. This is important to know, because I have not had my front end aligned since changing everything around and I don't want to go through the alignment if I decide I have to change some things. I do have the toe in set very close and the car seems to track down the road decently and there is no noticeable tire wear after a couple hundred miles. I measured the tread today.

The reason I'm asking this is because when I changed to the '73 Mustang disk brakes my steering radius changed drastically. It takes a couple of attempts to park in places where it shouldn't. I have to make a long arc when turning in town. It was like this even before I installed the R and P.

I'm thinking there must be a significant difference in the steering arms on the spindles, but can't seem to figure it out. There is nothing binding and they swing very close to the stops.

Any constructive help would be very much appreciated.

I can't believe I'm the only one that has put disk brakes on their Falcon. Maybe I should ask the same question to the Mustang and Fairlane guys.

My car has Stainless Steel Brake Co. front discs but I didn't do the swap. I can't imagine how a brake swap would effect the turning radius though.

Are you thinking that the spindles are somehow different in design that they bind up somewhere?

if you did a spindle swap and nothing else (steering box, pitman arm) then there must be a difference in the length of the steering arms on the spindles themselves. it's just a leverage length issue. if you put a shorter pitman on the steering box or the spindles have longer steering arms then yes it would increase your radius. the rack and pinion will always make it a ten point u turner as you cant get as much tie rod movement off an r&p.

I've considered all those thoughts before. I'm just thinking there is a difference in the size of the steering arms on the spindles. I was wondering if there was a difference in the Granada or Maverick.
Maybe someone who has used them will chime in.

The spindles don't bind. Would the caster and camber have an effect.

Originally Posted by retyler

I've considered all those thoughts before. I'm just thinking there is a difference in the size of the steering arms on the spindles. I was wondering if there was a difference in the Granada or Maverick.
Maybe someone who has used them will chime in.

The spindles don't bind. Would the caster and camber have an effect.

shouldn't have any effect on turning especially at parking speeds.

I though I answered this post last night, now I don't see it.
Did you trim your steering stops like they say on some websites? I didn’t.
I didn’t loose any turning radius. I used Granada spindles and 63 V8 suspension. As you know the 63 early 64 is different than the late 64-65 (V8 cars only). I did swap the Falcon inter tie rod on the outside and Granada outer tie rod on the inside because the angle looked more correct when stabbing the spindle. The angle of the tie rod sleeve looked more level too. I do not experience any Bump Steer that I’m aware of. The 70 and up Mustang (69 have smaller bearings), Maverick and Granada are the same spindle as far as I know. If the steering box is not center when installing tie rods you will be able to turn sharp one way and loose the turning radius the other because you run out of gear in the steering box.

Shelby drop, granada conversion, granada outers, mustang inners, gt box w/16:1 ratio, 65 falcon center link (manual steering of course), branda quick steer and bearings on pitman and idler, tcp struts, gw heavy duty arms and opentracker roller perches. No bump steer and I did not modify the stops.I think my radius is tighter than before.
Ras Daniel

Thanks,
Must me the difference in size or geometry of the spindles. I'm using 73 Mustang. I'll do some research.
Guess this is research.

are you running long tube headers, my tri y headers interfer with my idler arm and has decreased my turn radius do to steering linkage travel limits.