68 Camaro power steering coupler / rag joint

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**gmart68ZRS** · #1 04-29-2025, 02:22 AM

I'm replacing the steering coupler on my 68 Camaro. The shaft on the box is about 11/16 dia, (a bit smaller than 3/4) with a flat spot. The new coupler is for a 13/16 shaft with a flat spot. Both couplers have 19 splines from flat spot over to just before the pinch split. New coupler fits way too loose. I did replace the power steering box 10 years ago. It is the quick ratio box 2.5 lock to lock. But now I'm questioning if it is really a Camaro box. I ordered it for a 68 Camaro, and it bolted in. But the shaft size is smaller. Are there two (or more) sizes for the shaft, like 3/4 and 13/16 ? Is there one that is smaller than 3/4 ?

**SMS** · #2 04-29-2025, 04:56 PM

The section here about converting to PS might answer this for you.

https://www.pozziracing.com/camaro_steering.htm

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