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· Misses the vette
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i know this, but isnt there something special i need to do to line them up? i know i need to mark the arm. but marking it to line up to the original box isnt going to help much when the box is being replaced.
 

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it can go on 4 ways. it's pretty easy to tell which one is right... spin the input shaft until it's halfway between lock to lock, and install the pitman arm straight out from that.
 

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I'd like to add this link. A lot of guys are switching over to
quick ratio box's and Jim Shea has some great info on different
box's, hoses, etc. This is for A & F body rides but a Saginaw 600
or 608 [80mm dia bore] will go in. Our box's used to be
Saginaw model 800's but are now referred to as model 700's
[70mm dia bore] or 708 for bigger rides [80mm dia bore].
I use a model 700 Alpha code YA out of late 80's Monte
Carlo SS's and it's worked really well. What one should
know for instance is that F body box's will have less pitman
arm travel distance and take more effort to turn, where
A body box's though allowing more pitman travel in
the end, might cause tires to rub on a-arms, etc, so
one needs to choose what steer box one wants carefully.

I use Open Office to view these articles. I think before one
goes changing a steer box to fast ratio, one should know
which one might work best for the app. There is a lot
of other good info in this link and I hope people here
will take a look at some of the articles.

http://jimshea.corvettefaq.com/?page_id=5

HTH's.
 

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10,909 Posts
I'd like to add this info for those thinking about a quick
ratio box and what to use. Should be useful.

GM/Saginaw quick-ratio steering box donor car cheat sheet

Late Model 12.7:1 quick-ratio gearbox
ID markings YA, WS and HX
Line Thread Size: M18x1.5 and M16x1.5
Number of Mounting Holes: 3, (missing leg H-pattern)
Input Shaft Diameter: ¾-inch
Output Shaft Diameter: 1 ¼-inch
Number of Turns Lock to Lock: 2 ½ - 3
1984-'88 Monte Carlo/Malibu with Z65 suspension
1983-'88 Malibu, El Camino
1982-'92 Camaro except FE1 soft ride suspension
1984-'87 Regal with FE2 or FE3 sport suspension
1983-'84 Hurst/Olds
1985-'87 Cutlass with 5.0 (VIN code 9)
1982-'85 Trans Am
1986-'92 Firebird except FE1 suspension
1986-'87 Grand Prix with FE2 touring or F41 heavy duty suspension

Pre-'76 12.7:1 quick-ratio gearbox
Line Thread Size: 11/16 x 18 and 5/8 x 18
Number of Mounting Holes: 4, (H-pattern)
Input Shaft Diameter: 13/16-inch
Output Shaft Diameter: 1 ¼-inch
Number of Turns Lock to Lock: 2 ½ - 3
1967-'76 Camaro, Firebird
1970-'76 Monte Carlo/Malibu
1964-'76 Chevelle

1977-'79 12.7:1 quick-ratio gearbox
Line Thread Size: 11/16 x 18 and 5/8 x 18
Number of Mounting Holes: 3, (missing leg H-pattern)
Input Shaft Diameter: ¾-inch
Output Shaft Diameter: 1 ¼-inch
Number of Turns Lock to Lock: 2 ½- 3
1977-'79 Camaro, Firebird
1977-'79 Monte Carlo, Malibu
1977-'79 Chevelle

Jeep/S-10 14.0:1 quick ratio gearbox
Line Thread Size: M18x1.5 and M16x1.5
Number of Mounting Holes: 3, (missing leg H-pattern)
Input Shaft Diameter: ¾-inch
Output Shaft Diameter: 1 ¼-inch
Number of Turns Lock to Lock: 3 - 3 ½
1991-'92 Fleetwood
1992-'95 Grand Cherokee
1984-'93 Comanche
1984-'95 Cherokee/Wagoneer
1983-'86 Bonneville
1982-'93 2WD S-10 Blazer and pickup

Weatherhead conversion fittings
(from your local auto parts store)
Part number M41157X6X16 - AN6 male to metric 16 O-ring male
Part number M41157X6X18 AN6 male to metric 18 O-ring male
Part Number 1446 - female inverted flare thread
(5/8-18) to male 16 X 1.5 metric o-ring
Part Number 1447 - female inverted flare thread
(5/8-18) to male 18 X 1.5 metric o-ring
Part Number 1444 - 11/16-18 thread O-ring
Male to 5/8-18 female inverted thread adapter

HTH's.
bg
 

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26 Posts
Re: Steering column mounting to firewall

I just swapped cabs for my S10 went to a 1985 cab and used all the wiring harnesses from the 1993 S10 I had swapped the cab on, getting to the steering column I found that the mounting on the ends of the column are differant, do I need to disassemble both shafts to swap out the end tubes to fix the misallaingment or does some one have an easier way to do it? Im sure someone else has come up with this same situation before, any help would be appreciated thanx,
 
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