What would the difference be in upgrading to the 968 caster block vs something offered by RS Barn?

 

running roller bearings on the street would be more harsh and likely to break something vs. on the track. 968 blocks offer vibration dampning as well as stiffer arm torsion w/ larger wheels. I run 968 blocks and im very happy. Depends- are you building a race car?

 

Nah... no race cars. Just looking at price differences between the two and wondering if it would make sense to spend the extra for the RS Barn style blocks. My car mostly sits in the driveway.

 

968 blocks will do the trick.

 

Unless you track the car, the 968 bushings would actually be preferred.