Gold Lifetime Member
Join Date: Jul 2009
Location: casselberry, fl
Cardone IROC steering box (pn 276550) ???
I have a '68 with power steering and have read countless threads about converting to an IROC Z steering box for faster ratio turning and a firmer feel. People rave about these boxes and the improvement it will make to your steering. I have read numerous threads also about using the Cardone remanufactured box made for the IROC Z. Cardone's part number 276550. The ratio of these boxes is supposed to be 12.7:1.
I Googled Cardone and the part number and it showed up in stock at the local Advance Auto Parts store so I picked one up. I checked the ratio of the box to be sure it was 12.7:1 and was surprised that it turned out to be 15.1:1.
I returned it and picked up another one from a different Advance Auto. I checked the ratio on this one checked out to be about 14.4. Neither of them near the advertised 12.7:1.
So I am wondering what gives here?........Do I have the wrong box?.......Is Cardone just throwing any gear ratio in these boxes?......Does anyone else double check their ratio before installing one of these?
Another thing I am annoyed at on these boxes is the sloppy paint job on them. Absolutely awful! I don't expect show quality any means but it looks like these were completely assembled including the plugs in the ports and then the entire unit bathed in black paint. The splines of the input and output shafts are clogged with paint. Both boxes must have been boxed before the paint was dry because the paper lining the box it came in was stuck to the steering box. When you tried to pull it off, the paper ripped and fragments stuck to the steering box. The paint is still soft on them and I could scrape fragments off with my fingernail. Nothing that can't fixed but if I was making them, I would be embarrassed to send something out looking like that.
1968, 327 210 HP, Power Steering, Power Disc Brakes, Custom Interior, 4 Speed, Console, Gauges, Tilt Wheel, Speed Warning, Fiber Optics, 10 Bolt 3.55 Posi Rear end......Owned since 1978.