...do they come with the steering coupler?

I've got play end the end of my steering shaft.

Looks like I've got an excuse to order a close ratio rack

anyone know of mount upgrades for the rack?

 

Could you please explain what exactly it is you're looking for? I have a NOS steering rack straight from Corvette Recycling sitting in my basement, so I could take some pics if I know what to take them of.

 

Does the shaft just bolt to the steering shaft, or is there a coupler?
( I'm still on my original rack so I've never taken it apart)

I see Mid-America list Urethane mount upgrade.

 

Hopefully these help:

Incidentally, if you're interested in a 2.5 turn NOS rack, shoot me a PM

 

Poly bushings are the only upgrade I know of for the mounts.

 

Brian, it's also referred to as a "rag joint", or "rack biscuit", and no, they
don't come with racks (I sell 4-5 rack & pinions per day). And, as
said earlier, it's the mounts that are available in urethane, not the
coupler. Make sure to get a GM unit, not the Chinese Dorman/Help
unit....

 

Hi Brian,
For what it's worth, regarding poly rack mounts, I wouldn't bother. I put them on mine when I did my motor. They deflect just about as much as the stock rubber mounts when you steer. I honestly can't tell the difference on the street or track.

However it looks like it would be pretty easy to machine some from delrin or aluminum.

 

The reason I wanted to know about the upgrade is when I bought my large tire/wheel combo, I got a phone call from the wheel supplier saying that some people were tearing the racks off the mounts!

Can you get me a deal on one?

 

Eh, the brand I sell, quite frankly, I wouldn't put one on my car...

It's my job though....

 

I appreciate you honesty

I'm looking at Mid-America's sight right now

$379.99 for a rebuilt rack

Know a good place to get one?

 

http://www.corvetterecycling.com/category_s/23.htm

Call them about the other part you need. Really good prices. They have some stuff that is not listrf on the website too. Good folks to buy from. Sounded like StealthLT4 was trying to sell you his NOS 2.5 rack in his post above. This is something I may do when I start pulling the ront suspension off of the car for the Polybushing install.

 

Does Flaming River offer one for our cars? They make a good product...

 

Nope

BTW Just for laughs I call a stealership, the racks have been discontinued.


StealthLT4 what did you want for the rack?

 

Here is a place I got my rack from in Feb. Seems to be holding up really good. They did have the 2.0 lock to lock ones when I ordered mine.

racepages.com

Just takes them a while to get your core charge back from them, but they did credit it within 30 days of my core return.

I am not Indorsing them, just had good luck with the one I got.

 

Here is the part # I used, AST70-6471. Seems they do not carry them for the Corvette anymore?

 

A1 Cardone # A122112 is supposed to be the fast rack for 84 -87
$210 including core charge

ACDELCO Part # 3616306
$280 including core charge

 

I might have some trouble getting an 84-87 rack to fit

They changed the wheel offset, so I'd at least need to change the inner tie rods

An 88-90 MIGHT fit.

 

Brian:

I recently installed a steering rack from Zip-Corvette; very good customer service.

As to upgrading the mounts to polyurethane, the passenger side is very easy, it simply slips over the rack; the driver's side was, for me, difficult.

The driver's side mount consists of a rubber bushing around a large aluminum bushing that forms the inner diameter of the mount. This rubber/aluminum assembly is pressed into an aluminum boss which is intergal with the rack housing.

It would not simply press out; and beware of trying to muscle it out or using excessive force, if the aluminum boss is damaged, the rack is ruined.

I removed the original mount by using a die grinder to grind away most of the aluminum bushing and a small drill to drill through the the rubber portion of the mount; it wasn't easy, but it was more labor intensive than anything.

But at some point I removed enough of the rubber and aluminum to allow the remainder to be pressed out without an excessive amount of force.

Part of the problem seemed to involve the fact that the inner surface of the aluminum boss had a layer of corrosion that was "biting" into the outer surface of the rubber portion of the mount.

Reassembly was easy, I cleaned the oxidation/corrosion from the inner surface of the steering rack boss, coated it and the new polyurethane mount liberally with anti-seize to forestall any further corrosion, and it was good to go.

 

So,

What are the specs on the "quick ratio" (Z51?) rack? For the LT1 cars like mine and Brian's?

2.0 quick?
2.5 standard ratio?

 

Looks like the fast ration rack was stopped by the time the LT1 cars came out.

I'm trying to see if an 89 rack will fit in my car.