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Converting from C5 wheels to C6 wheels

Old 09-24-2018, 07:50 PM
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VZVette
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Default Converting from C5 wheels to C6 wheels

O I hope someone can help. I have a set of C6 rims and I would like to put them on my 2000 C5 convertible. Based on my research I found that I will need to purchase wheel adapters for the rear wheels. Would anyone be able to recommend the exact size I need to do this correctly. Ive seen comments stating 20 mm or 3/4 ; however I would like to be sure. Also, does a particular manufacturer provide a better/exact adapter that works best? Thank you in advance for your help.
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Old 09-24-2018, 08:27 PM
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My spacer is 1 but not sure of the brand. I have had them on for the last 5 years and have both C6 and C7s wheels and they both require the spacer on the rears.
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Old 09-24-2018, 08:32 PM
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Originally Posted by RockyMtC5 View Post
My spacer is 1 but not sure of the brand. I have had them on for the last 5 years and have both C6 and C7s wheels and they both require the spacer on the rears.
Do you have spacers or adapters that have their own lugs? Thanks
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Old 09-24-2018, 09:52 PM
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Originally Posted by VZVette View Post

Do you have spacers or adapters that have their own lugs? Thanks
They are bolted to the factory lug bolts and provide the lugs that the wheels get bolted to. I would not use a spacer that isnt a similar adapter. I also have 1.25 adapters on my Jeep Rubicon to move the wheel out. I dont think they make spacers like this less than 1 thick.
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Old 09-24-2018, 10:30 PM
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I would avoid the 3/4" adapters. If you use them you aill most likely have to trim the unthreaded part of the studs on the rear of the car to avoid interference with the wheel mounting flat on the adapter. The Factory studs are 1 1/4 long so they would protrude past the 3/4" adapter by 1/2". The shape of the back side of the C6 wheels allows about 1/4" of stud protrusion without interference but unlikely to work with 1/2" protrusion.
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Old 09-25-2018, 03:22 AM
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Custom, made to order.

http://www.motorsport-tech.com/wheel_adapters.html

frank


Originally Posted by VZVette View Post
O I hope someone can help. I have a set of C6 rims and I would like to put them on my 2000 C5 convertible. Based on my research I found that I will need to purchase wheel adapters for the rear wheels. Would anyone be able to recommend the exact size I need to do this correctly. Ive seen comments stating 20 mm or 3/4 ; however I would like to be sure. Also, does a particular manufacturer provide a better/exact adapter that works best? Thank you in advance for your help.
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Old 09-25-2018, 06:58 AM
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Thank you for your detailed response! It will help me to avoid any unseen problems that I could have encountered.
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Old 09-26-2018, 09:53 AM
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Someone should make a sticky thread on this - a chart would be nice - "You want to put these wheels on a C5 - you need these tires and these spacers" - a nice addon would be - "And if you want to clear C6 Z06 brake calipers then you need this"....
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Old 09-29-2018, 07:12 PM
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Default After Market TPMS

Ive ordered rear wheel adapters from Motorsport Technology and Im awaiting delivery. Owner Lenny Stahl said hes done hundreds of C5 to C6 wheel conversions and said that 7/8 thickness works best. As part of my original post regarding converting from my C5 wheels to C6 wheels I also want to purchase new TPMS for the conversion because I want to keep my original C5 wheels intact. Has anyone ever ordered after market TPMS from TPMS247.com? Ive read positive and negative reviews about them and based on what I have found so far they have the best price for 4 chrome C5 TPMS; however a low price goes hand in hand with value. So before I purchase from them I thought that it would be valuable to ask you folks at the forum because I respect your opinion. Also, if anyone can recommend another provider it would be greatly appreciated. Thank you in advance for your feedback.
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Old 09-29-2018, 07:37 PM
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Originally Posted by VZVette View Post
Ive ordered rear wheel adapters from Motorsport Technology and Im awaiting delivery. Owner Lenny Stahl said hes done hundreds of C5 to C6 wheel conversions and said that 7/8 thickness works best. As part of my original post regarding converting from my C5 wheels to C6 wheels I also want to purchase new TPMS for the conversion because I want to keep my original C5 wheels intact. Has anyone ever ordered after market TPMS from TPMS247.com? Ive read positive and negative reviews about them and based on what I have found so far they have the best price for 4 chrome C5 TPMS; however a low price goes hand in hand with value. So before I purchase from them I thought that it would be valuable to ask you folks at the forum because I respect your opinion. Also, if anyone can recommend another provider it would be greatly appreciated. Thank you in advance for your feedback.

I personally would avoid aftermarket TPMS for the C5. MOST aftermarket TPMS do NOT program to the C5 with a magnet as do the Schrader or ACDelco TPMS. The aftermarket TPMS generally require a programming device (often proprietary) or letting air out of the tires to trigger the TPMS device to transmit. There are MANY threads on the Forum by members that purchased aftermarket TPMS and were then never able to get them to program to the C5. As always YMMV.


Here is the procedure for programming either Schrader or ACDelco TPMS to the C5:

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Old 09-29-2018, 07:50 PM
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Thank you for your quick and valuable response! Also thanks for the video showing how to program the TPMS with a magnet. I appreciate it very much.
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Old 09-29-2018, 08:31 PM
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^
Agree with 8VETTE7; you are much better off with the Schrader or ACDelco.
It appears from the website for TPMS247.com that they do carry Schrader.
Comparing the cost of Schrader to the less expensive one, you will pay about $20 more per TPMS, so, $80 extra. Since you should get 8-10 years (or even more) out of good TPMSs, it only cost you about $8-10 per year (or about 2-3 cents a day).
In case it has been a while since you bought replacement TPMS, please remember that there are two different "generations" of TPMS for C5s; one for 1997-2000 and the other for 2001 and later (by model year; not affected by year group of the wheel).
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Old 09-29-2018, 09:08 PM
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Thank you for your response. Just to clarify, my C5 is a 2000 convertible. I appreciate your help.
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Old 09-29-2018, 09:25 PM
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AC delco only $40 at Rockauto.
Just installed mine today.
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Old 09-29-2018, 09:38 PM
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Thanks but I was unable to find them for $40 on Rock Auto. Theyre all more than $70 each.
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Old 09-29-2018, 10:01 PM
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Originally Posted by rjwvetttt View Post
AC delco only $40 at Rockauto.
Just installed mine today.

Your profile says you own a 2004. The Thread Starter owns a 2000. The earlier year C5's (1997 - 2000) use different TPMS than do the
the later year C5's (2001 - 2004). The later year C5 TPMS are significantly less expensive than are the earlier year C5 TPMS.
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Old 09-29-2018, 10:21 PM
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Originally Posted by 8VETTE7 View Post
Your profile says you own a 2004. The Thread Starter owns a 2000. The earlier year C5's (1997 - 2000) use different TPMS than do the
the later year C5's (2001 - 2004). The later year C5 TPMS are significantly less expensive than are the earlier year C5 TPMS.
OK, I missed that.
I thought there was a thread on converting them too though.
Hope it works out.
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Old 10-11-2018, 05:56 PM
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Default Update regarding C5 to C6 Wheels

I received the 7/8 thick wheel adapters from Motorsport Technology and they looked great. They were definitely a quality product. I brought them to my Vette mechanic to swap out the C5 wheels for the C6s. I also purchased Shraeder TPS. The C6 wheels fit perfectly without using the adapters. If they were installed, the wheels would have stuck out beyond the wheel wells and as a result would spray dirt onto the rear fenders. The Schrader TPS worked as expected without any programming problems. Im writing this as a follow up and as an FYI for members that are planning to do a C5 to C6 wheel change. The mechanic told me that perhaps the adapters wouldve been needed if I swapped out to C6 Z06 wheels. I thank the members that provided me guidance for this project and I hope this helps others that are planning a C5 to C6 conversion.
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Old 10-11-2018, 08:54 PM
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Default Hubcentric 25mm rear spacer for c6 wheels on c5.

I have hub-centric 25mm spacers for c6 wheels on my 1998 targa. Sourced from Ebay seller. Existing studs need to be trimmed 1/4". Wheels/tires are flush with body.
Without the spacers, the tires rubbed on the inner fenders during spirited driving. Also, the rear tires were way too 'tucked' into the body.
OEM C6 base wheels powder coated gloss black, not repro's. Car is lowered on stock bolts.



Last edited by howie2092; Yesterday at 12:56 PM.
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Old 10-11-2018, 09:04 PM
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I converted my TPMS and key fob to the 2001-2004 version. My 1998 had no fobs and non-working TPMS when I got it, so it was a no-brainer to switch to the newer system.

TPMS sensors have to be AC Delco or Schrader, the generic brands don't talk to the car at all.

Last edited by howie2092; 10-14-2018 at 10:28 AM.
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