Need help with sizes!

[Phil_T]

I want to put cragar soft 8's on my '08 mazda B2300. But I'm a little confused with the backspacing, off set.... I want it as close to stock as possible and I'm keeping my stock tire size 225/70r15. Which ones of these 2 would be the best one and what would be the difference.

http://www.summitracing.com/parts/CRR-3975712P/

http://www.summitracing.com/parts/CRR-3975712/

 

[07rangersport]

Stock backspacing is 4.5", the first set you linked is 4.25" so they will stick out 1/4" more than stock. If you are keeping your 225 tires a 7" rim might be a little wide. Also keep in mind that those are steel wheels, so they will add alot of weight for that 4 cyl to turn. Welcome to TRS

 

[Phil_T]

Stock backspacing is 4.5", the first set you linked is 4.25" so they will stick out 1/4" more than stock. If you are keeping your 225 tires a 7" rim might be a little wide. Also keep in mind that those are steel wheels, so they will add alot of weight for that 4 cyl to turn. Welcome to TRS

1. but wouldn't my stock 15" be 15x7?
2. for the weight issue are they much heavier then the stocks?, since the stcoks are steel.

 

[07rangersport]

I don't know for sure what the width of your stock wheels would be. I'm guessing at 6" because of the 225 tires. If your stock wheels are steel then you will be fine, but if they are aluminum then you will probably notice a difference. Especially with that 4 cyl. Look up your stock tires online and see what the recommended wheel width is.

 

[JohnnyO]

The factory aluminum wheels are 7" wide, so you will be fine. In the late-70's/early 80's the factory was putting 225/70-15's on 8" rims on Corvettes and Trans Ams.