I bought Four 255-45-20 Toyo PROXES tires and four 20x8.5 5 lug Brand new CHROME American Eagle 304 wheels off of ebay that should fit. Is there any thing i need to do before putting the rims and tires on. or is there anything i need to do after i put them on such as recalbrate the speedo thanks for any help given

You will need to tell the PCM about the size change. If you have a SuperChips programmer it will do it... if not a dealership should do this for you.

__________________
Mango #389 in TX

Mods: Diablo Predator/DIY Caliper Paint/DIY Intake/RAMAir Hood/Dynatech-LTs/Hotchkis Sways/KWv2/Corsa/Hood Pins/KRC 212 LX cam/Zex

I have the same size setup as that and according to the Les Schwab people it is the same overall diameter as the factory 18's.
No recalibrating or updating was needed.

__________________
[center]Dubair CAI, Magnaflow Exhaust, RKsport Viper Hood, 65standard Grille, Danko Chin Spoiler
Eibach Prokit, 20x8.5 Foose Nitrous, Toyo Poxes 255/45/R20

Thanks Magmania, you are right.

Obviously I'm wheel challenged here Here's a good resource for those that are challenged like me online tire size calculator from Discount Tire.

__________________
Mango #389 in TX

Mods: Diablo Predator/DIY Caliper Paint/DIY Intake/RAMAir Hood/Dynatech-LTs/Hotchkis Sways/KWv2/Corsa/Hood Pins/KRC 212 LX cam/Zex