Which radiator?

[zsiya]

In looking for a replacement rad, I see one for heavy duty cooling and a regular one. How do I know which one I have now? Its a 1999 2WD Yukon and from what it sounds like, its leaking from the side tanks.

 

[Sepiroth]

IMHO, get the heavy duty cooling option. IIRC, its a 4 core vs. a 3 core radiator.

I think, dont quote me on this, the heavy duty cooling would be standard if your truck has the towing option.