Steering Box - is it the same?

The IROC box will be 12.7 to one ratio and less than 3 turns will shorten the spindle travel on a Chevelle causing less turning radius. The 77 Camaro unit will be 14.4 to one ratio and also have internal stops. Go to my site and read what I have discovered so far. Also check out jimmy's site for more info. There are bolt in boxes that can be bought from local sources for less money than the specialty suppliers that will help with ratio and feel. If you want a 12.7 ratio and use stock hoses you don't have pay the large dollars to those that sell them. It is easy to change the fitting on the back of the pump so you can use the "o" ring style hose and order a box for a Monte SS or Buick GN from 85-87.

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Philip Valentine
Gold Member #42
Sometimes I think I understand everything, then I regain consciousness
Under Construction Car & Page

I have access to a 76&79 Trans am.Do I understand them to have the 14.4 ratio's?
Also access to a 84 monte carlo v8?
Which would be the best choice with the least amount of hassles?
Where are the stops located that need to be removed?

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66 300 Deluxe 350/330hp
71 350 malibu (project car)
72 Elcam 402SS
78 Malibu Classic (daily driver)

Check out Harry's. He charges $165 plus
shipping to rebuild your box with the cool
innerds. He's done five of them for me.
www.steeringgearrebuilders.com/

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69 SS396 69 Malibu Ragtop
70 Monte 72 El Camino
Team Chevelle Gold #33
ACES Member #02913
Chevelle Club of Michigan
Rode shotgun in the ONLY Z16 convertible made.

Don't even think about getting Year One's box, QF48. I just took one back this past weekend. It was the second one I tried, and both had poor center steering characteristics. They were tight, but had oversteer and wandered too much.

Because I had turned in my original box as a core, I had to go get a junkyard gear just to try something else. I got one from a 77 Firebird for $50 and it bolted right up. Works pretty well compared to the other ones from Year One.

I was hoping for the same response in this gear I get from my 78 Trans Am with WS6, but it's not as good. It may be the car itself.

I have the caster set at 1 degree over the spec limit, on the positive side, but would like more if would help keep the wheels more centered. The spec calls for +1/2 minus or plus 1/2. How much further could/should I go?

Anyway, just my 2 cents....not worth the $279 I spent. I will watch for my credit card to be credited!

David, they need to credit you for the amount of the core also. That is SOP when you trade one and then get a refund.

Will second Tom's opinion of Harry's. Great box.
rick

Thanks Rick! It's me, you, and FATCAT diggin' Harry's gearboxes! They do a super job for the money. Each box is flow tested before it leaves their shop..no guessing!

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69 SS396 69 Malibu Ragtop
70 Monte 72 El Camino
Team Chevelle Gold #33
ACES Member #02913
Chevelle Club of Michigan
Rode shotgun in the ONLY Z16 convertible made.