1989 Corvette wheel spefications

[trainman123]

I am looking to purchase a set of aftermarket rims and I would like to find out the complete specifications for the origional rims. Not a mechanic so offset and some of the other terms are a bit confusing. Would like to know all of the origional wheel measurements so I can compare it to the after market rim and make sure that they fit.
Thanks

 

[rrubel]

Per Mike Antonick:

Wheel rim size - 17" x 9.5" front and rear
Offset - 1.97" ( I believe that's the distance from the outside of the rim to the inside of the part that sits against the hub)
Attachment circle diameter - 4.75" (that's how far around the circle of wheel studs is)
5 studs per wheel. Not sure of the distance between alternate studs (might be 100mm).
Stud size: M12x1.5-6H
[RICHR]

 

[c4cruiser]

stock 88 Corvette wheels are 17x9.5". Offset is 56mm and backspacing is 7.4" The lug pattern is 5x4.75 (or 5x120.65mm).

Here's the information as shown on the AFS web page for their 88 and later wheels. You can also use Grand Sport (17x11) rear wheels from a coupe that will fit inside the wheel well. AFS sells these in addition to the standard-sized wheels. AFS wheels are very popular as an aftermarket wheel and they are reasonably priced.

 

[trainman123]

Thanks for your help. The AFS rims were the ones that I was looking at on E Bay. I just wanted to make sure that they fit before I bid on them.

Tom.

stock 88 Corvette wheels are 17x9.5". Offset is 56mm and backspacing is 7.4" The lug pattern is 5x4.75 (or 5x120.65mm).

Here's the information as shown on the AFS web page for their 88 and later wheels. You can also use Grand Sport (17x11) rear wheels from a coupe that will fit inside the wheel well. AFS sells these in addition to the standard-sized wheels. AFS wheels are very popular as an aftermarket wheel and they are reasonably priced.

 

[trainman123]

Thanks for your help.

Tom.

Per Mike Antonick:

Wheel rim size - 17" x 9.5" front and rear
Offset - 1.97" ( I believe that's the distance from the outside of the rim to the inside of the part that sits against the hub)
Attachment circle diameter - 4.75" (that's how far around the circle of wheel studs is)
5 studs per wheel. Not sure of the distance between alternate studs (might be 100mm).
Stud size: M12x1.5-6H
[RICHR]