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Old 02-12-2011, 06:41 PM
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MII steering sector 2"

My project doesn't leave much for steering......never heard of anyone doing this but I plan to shorten the MII steering sector from 5 1/2" down to 2 1/2 " by cutting and removing 3" of it from below the splined area and then grafting the splined area back on by means of a 1" long coupler/sleeve... weld at the splined end and then drill and roll pin the lower area.
thoughts?

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Old 02-21-2011, 01:58 PM
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If you mean the piece that comes out of the rack ... going to the spindle
You will have LARGE problems ...

If you mean the shaft that connects the rack to the steering column ...

NO PROBLEM
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Old 02-21-2011, 02:25 PM
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Yes, I mean the splined shaft that comes out of the Rack and connects to the steering column. I needed this shortened because of the clearance issues with my new Long tube headers.
I chickened out because I was afraid that the weld would fail and I would be going 70 mph, hit a pothole, and wind up with no steering.
I was told by TCI that the 60 - 65 Falcon R&P comes with a 1" shaft....but I don't really wanna dish out money for yet another rack......so I just used my useless Blockhugger headers.
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Old 02-22-2011, 09:46 AM
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Quote:
Originally Posted by Fergusonic
...I was told by TCI that the 60 - 65 Falcon R&P comes with a 1" shaft...
Say what? Those cars never had a factory rack!

Russ
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Old 02-22-2011, 10:04 AM
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True...but TCI offers a Rack / kit for them.
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Old 02-22-2011, 12:02 PM
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Quote:
Originally Posted by Fergusonic
True...but TCI offers a Rack / kit for them.

^^^What he said...... When using a manual rack on the Falcon MII's they require a special short pinion option.

Maval part# 8000400

-J
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Old 02-22-2011, 09:00 PM
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NAPA has the short shaft rebuilt MII racks, power. Very reasonable. Don;t want power? Run it without. Reasonable price with core.
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Old 02-23-2011, 06:56 AM
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I'll have to check out the Napa rebuilt unit. I had a TCI power unit once before and the ratio was so quick that the vehicle would dart and twitch at road speed. ...and I don't want that.
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Old 02-23-2011, 07:05 AM
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OK...so I checked out Napa power short shaft.....it appears that the shaft + the power unit (where the lines attach) are just as long as what my existing Manual MII shaft is.....so that won't work. rats.
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Old 02-23-2011, 08:21 AM
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In understand what you are saying. They state different lengths of shaft but do not give a reference and looks like the shafts are the same just that the housing for power comes up higher on the shaft.
That measurement really does not help except for comparison to like racks.
{ Perhaps you could break down the rack and have the shaft shortened?
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Old 02-23-2011, 09:28 AM
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[QUOTE=Cape Cod Bob
{ Perhaps you could break down the rack and have the shaft shortened? [/QUOTE]

Never had one apart so I don't know what the inside looks like. The exposed end is splined.....so in cutting that end off to 2" long: I have never seen splines milled onto a shaft at a machine shop......but I guess that would not be impossible (?)
This problem of being unable to connect steering universal joints/shafts all stems from the long tube headers that I bought (and can't return). Again; the splined shaft is too close to the header pipe but if the shaft was like 1 or 2" long; then I would be able to snake steering components around them. They are Dynatech headers and are really nice quality. ....but if ya can't connect steering: what good are they? ha ha on me! So, currently; I just put my blockhuggers back on.
Oh well
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Old 02-23-2011, 11:44 AM
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Just to clarify, when using the power rack you won't need the short pinion because the angle of the shaft is different.

How much positive caster were you running? What P/S pump(how much pressure)?

Something else to consider is the early 80's Thunderbird rack is 3 turns lock to lock instead of the 2.5 turns lock to lock on the later 80's T-Bird racks that are provided with the kit.

-J
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Old 02-23-2011, 04:49 PM
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Quote:
Originally Posted by slow4dr
Just to clarify, when using the power rack you won't need the short pinion because the angle of the shaft is different.

How much positive caster were you running? What P/S pump(how much pressure)?

Something else to consider is the early 80's Thunderbird rack is 3 turns lock to lock instead of the 2.5 turns lock to lock on the later 80's T-Bird racks that are provided with the kit.

-J
It's been a few years since alignment so I don't remember the Positive Caster. The P/S pump was a GM but I had a Heidt's flow reducer in-line. I'm pretty satisfied with the Manual / alignment / handling and want to stay with manual.
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