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Discussion Starter #1
For sale is a rear axle from a 1993 Chevy Caprice sedan, with the 7.625” 10-bolt differential and 28-spline axles. It has been custom fitted with a rare 2.14:1 ratio gearset, and rare 1980’s GM 9.5” aluminum brake drums (weighing approximately 7 pounds each). The center bore and bolt holes on the drums were custom machined to fit the 5x5” Caprice hubs and studs. The ring and pinion were professionally installed, using new bearings and seals. The axle assembly came from a car with 98,000 miles, and about 6,000 miles have been put on the axle since the conversion. The axle shafts and bearings were not replaced, but are in good condition. The parking brake cables were replaced at the time of the conversion, and a brand-new brake hose will be included as well. In other words, the entire assembly comes ready to plug and play.

This axle assembly should fit any B or D body sedan made since 1977—Chevy Caprice, Buick Roadmaster, Cadillac Fleetwood, Oldsmobile, etc. It will also fit B-body station wagons—the 6,000 miles I logged were in a 1994 Caprice station wagon.

The 7.5” 2.14 ratio gearset is the highest (numerically lowest) that GM ever made, and is the ticket to the best possible highway mileage in these cars with an automatic transmission (or manual transmission, if you don’t use engine-off coasting). I was able to achieve 35 MPG on the highway using this axle in my station wagon, with no engine-off coasting.

I’m selling because I’ve discovered that with the use of engine-off coasting, gear ratio is not as important for maximum economy. However, EOC is not possible with an automatic, so if you don’t want to convert your B/D body vehicle to stick shift…this setup will reduce weight and get your RPMs down, yielding the best possible highway mileage.

Asking $500. I’m located in the greater Roanoke VA area, and I’d be willing to travel a reasonable distance to meet for the sale. I’d prefer not to ship, but I’ll consider it if you make arrangements. I do have a pallet I can strap it to, but I’ve never shipped anything this big before.

Please email for more information: [email protected]. Thanks for your interest!

-Funkhoss
 

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Discussion Starter #2
So far, there hasn't been much interest in this rear end. Would anyone like to make an offer?

If it doesn't sell soon, I'm going to take it apart and sell the parts separately. I'm guessing those aluminum drums would be the perfect setup for someone with an Impala SS who drag races--minimal weight AND minimal drag...

-Funkhoss
 

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Personally, if my LT1 B-or D-came with [standard iron] 11"*2" drums, I'd be looking for aluminium 11"*2" drums.
Then I'd get them slotted or drilled by C. H. Topping or some other very highly reputable operation.
Guess I've some reticence about using 'smaller' brake hardware.

On a related, but separate note,
What are the pertinent differences between Engine-Off Coasting & Decel Fuel CutOut (the latter of which is definitely possible with an automatic)?

One other thing:
Considerable MpG gains can also be achieved by custom tuning in open loop.

(OK, I'm done.)
 

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Disappointing to hear that there are no 11"*2" aluminium drums.
In my case, I'd settle for cross-drilling &or slotting the 11"*2", instead of using smaller drums.
 

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In my case, I'd settle for cross-drilling &or slotting the 11"*2", instead of using smaller drums.

I never heard of cross-drilling or slotting on drums? Always heard it talked about for Rotors. Can you explain further maybe with some pictures? Thanks.


Mike--94MSP9C1
 

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I wouldn't be so trusting about them being ok in the water...
Sure the spinning drum would evacuate the water, but you'd still have a wet stationary shoe that would only dry with some heat.
OEM's had plenty of time to pursue this even before discs became the hot thing.
 

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Discussion Starter #11
Last chance--if no one wants this rear end, I'm going to take it apart and sell the parts separately (for real this time!).

Make me an offer if interested!

-Funkhoss
 
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