Wrong Steering Box? - Team Camaro Tech
Brakes, Suspension & Steering Conversion questions, Steering & Handling

 
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post #1 of 6 (permalink) Old Jun 27th, 08, 08:06 PM Thread Starter
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Rick
 
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Wrong Steering Box?

A while back I bought what was supposed to be a fast ratio steering box off of a 1968 Camaro Z28. I'm now trying to put a rag joint on it, and the darn thing is way too loose. In fact, if I tighten it down before putting it on the box, it is still loose, and I cannot get it tighter. Could I have the wrong box, or the wrong steering coupler? I pulled the coupler from a 1973 Nova this morning. Hopefully someone has a favorable answer for me. I measured the diameter of the input shaft from the flat spot, to the outside and it was around .665".

Thanks,
Rick
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post #2 of 6 (permalink) Old Jun 27th, 08, 08:19 PM
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Tom
 
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Re: Wrong Steering Box?

The 1968 quick ratio steering box is not the same as a 3rd generation IROC box. They are quick ratio, but not firm feel. The 3rd gen boxes do use a ragjoint that is smaller than ours. Was the box previously swapped ? Please, read the STICKY listed at the begining of this section of the forum.

69 Camaro -originally a LM1 car. 327, Edelbrock E-streets, hooker, DUI performance distributors, ultradyne cam, stewart, TRW etc. Vintage Air, AGR steering, Corbeau GTSII seats, 700R4 transmission, 12-bolt w/Eaton 4.11:1
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post #3 of 6 (permalink) Old Jun 27th, 08, 10:30 PM
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David Pozzi
 
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Re: Wrong Steering Box?

Measure it from the largest diameter portion, not the flat spot.

Check my web page for First Gen Camaro suspension info:
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67 RS 327 original owner. 1965 Lola T-70
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post #4 of 6 (permalink) Old Jun 28th, 08, 07:25 PM Thread Starter
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Rick
 
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Re: Wrong Steering Box?

Hi guys, so here's what I did today. I went to Ecology, which is our local pick a part salvage yard, and I pulled a power steering box from a 70 Camaro. It is just over 2.5 turns lock to lock, and it has inverted flare fittings. Does this seem like a good box?
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post #5 of 6 (permalink) Old Jun 29th, 08, 08:29 AM
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Re: Wrong Steering Box?

The 1970 Gen II power steering gear box is variable ratio (16:1 on center and 12.4:1 near full lock). Your 1969 power steering gear was a straight ratio 17.5:1. So you will have a slightly faster ratio right on center while driving straight down the road. You will also have much less turns full lock to full lock.

Also another good thing is that the valve in the Gen II gear is a 28 inch lb valve with a 0.195 torsion bar. (This valve should give you a lot more road feel.) Your 1969 gear had a valve with a 0.175 diameter torsion bar and a pinky turning 17 inch lb effort (very typical for that era).

I think that you should be happy with this gear.

BTW, right after 1970 the Camaro went back to much lighter effort gears in most Gen II vehicles.

Jim
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post #6 of 6 (permalink) Old Jun 29th, 08, 05:55 PM Thread Starter
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Rick
 
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Re: Wrong Steering Box?

Good deal, so I have a variable ratio box. As long as it works with all the stock components, I will be happy.
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