Check out this nice 85 IROC on e-bay. It has a lot of papper work with it. I find it interesting that the original owner ordered his IROC with posi on 2-25-85. On 7-5-85 when he got it it didn't have a posi on it. http://cgi.ebay.com/ebaymotors/Chevr...fCarsQ5fTrucks

 

That definitely looks like it is probably an 8k mile car but it doesn't have the original speedo unless it was dealer installed.

 

It's an aftermarket speedometer... Notice the needle doesn't match the rest of the gauges.

 

This car is just like all the 1C5 California Irocs that came with the GU6 3.42 performance rear axle, J65 4 wheel disk brakes, but no G80 limited slip rear gears. I think that GM ran out of the G80 limited slip rear gears if a car was built from April through July just as this car was and all 1C5 California Irocs don't have G80. So you couldn't order the G92 performance package which had GU6, J65, and G80 at this time during 1985. Could be why only 205 camaros were produced with this G92 combination. There should be a GM memo in regards to this shortage of G80 limited slip rear gears somewhere. Also, did all 1985 camaros with the G80 gears get produced before April or after July that year?

 

No, it's definitely a GM speedo, just not a factory piece. They were available through the parts department so it could have been dealer installed when the car was new.

 

Years ago, those speedos were available through Classic Industries.

JamesC

 

http://en.wikipedia.org/wiki/Afterma...8automotive%29

 

https://www.thirdgen.org/forums/post...956-post7.html

https://www.thirdgen.org/forums/post...020-post9.html



Look familiar? Regardless of manufacturer, it wasn't installed on the car originally, but was added afterwards. Hence it's an aftermarket part.

The needles don't match because it's not accurate for the car, and wasn't intended to necessarily go in an 85.

 

I never said it was a factory speedo. I only said is was a GM speedo. Chevy installed the same speedo in the actual 1982 Indy pace cars. That part was available through the GM parts department so it could have easily been a dealer installed part prior to the original owner taking delivery.

 

Actually you implied it wasn't aftermarket because it's a GM part. As I explained it doesn't matter who manufactured, sold, or installed the part. Any parts installed after the car leaves the factory, by dealers, or otherwise are aftermarket.

 

You said it was an aftermarket part, implying it was a non-GM piece. "Aftermarket" parts are generally accepted to mean non-OEM pieces. Since OEM means "original equipment manufacturer" that speedo is a OEM part. It carries a GM part number, was available through GM dealerships, and could be dealer installed on a new car before taking delivery. Chevy even installed that speedo in the 1982 Indy pace car.

 

Not really, what I was getting at is that it's clearly not original. Besides that, GM licensed parts OFTEN are sold through dealerships and carry GM part numbers even though they're manufactured by a third party. That doesn't necessarily mean it's truly an OEM part.

I wasn't implying anything, I stated it's an aftermarket part. If you can't understand the definition of "aftermarket" that's your own problem. I agree to disagree with you.

 

This is a silly argument. Fact is the car is using low mileage as a selling point when it has a speedo installed that did not come with the car from teh factory meaning the indicated mileage could very possibly be different from the actual mileage.

 

I'm sure I know far more about the automotive industy than most people on this site. Considering I worked as Quality Manager for a large automotive supplier I think I'm MORE than qualified to define an "aftermarket" part. This is a GM part that was more than likely manufactured by the same company that manufactured the original factory speedos. This is not a factory speedo but it is an OEM piece.

Also, I don't think you understand the term OEM. The part was manufactured by a company for GM. It likely came from a company such as Denso that makes other gauges for GM. If it was manufactured for GM by a regular GM supplier and it would be an OEM part even though not an original part.

By your definition dealer installed GM floormats would be aftermarket pieces. Even front license plate brackets weren't factory installed but were manufactured specifically for GM to be installed on certain cars. I hardly consider them "aftermarket" pieces.

 

The ebay add states that the original 85MPH speedo is available, comes with the car, and has 10 miles on it

 

I couldn't care less, and obviously you're not since every printed definition of "aftermarket" which relates to auto parts states it means parts and accessories sold after the car is sold.

Ok, but how does that make it not an aftermarket part when it wasn't part of the equipment covered on the build sheet or original invoice? You can pick over everything with a fine toothed comb and look for something to debate or you can look at the bigger picture and try to understand what's really being communicated.

I understand the term OEM, but it doesn't really matter since that's not a point of contention in this debate. It DOESN'T MATTER WHO MANUFACTURED THE SPEEDOMETER IN QUESTION it's still a parts counter part, i.e. AFTERMARKET. It was purchased separately from the car and added after the car left the factory.

Floor mats installed by a dealer after the fact or by request of the customer at the point of sale ARE aftermarket parts. The same as spoilers, vent visors, light covers, mud flaps, bras, car phones, etc. Just the same as the SLP parts, and almost everything in the GM performance parts catalog are aftermarket parts.

Hey I like a good debate as much as the next guy, but for real, I can only say the same thing so many times. You're not going to change my opinion, I'm not going to change yours, and I doubt anyone else here really cares one way or the other, so what's the point? You don't need to explain where you're coming from, because I've understood everything you've had to say on the topic. It'd be nice if you could understand what I'm saying instead of putting so much weight into a word you obviously interpret differently. It really doesn't matter.

 

I like how whoever put the car on the lift used pinchwelds all the way around - Thats how they get crushed!

 

This is the kind of "Know It All" attitude that I can't freaking stand!!!

 

I'm only trying to give you some insight into the OEM industry. Among OEM manufacturers, the "aftermarket" is generally accepted to mean non-OEM parts. If you bring your car to a dealership for a tune up and they use factory replacement plugs and wires very few people would consider them "aftermarket" pieces.

 

and back to orig topic.. earlier g80 here, pre March 85.