I have a 2006 Envoy XL with a 4.2 Inline-6. Looking to do a complete brake job. I found the Brakemotive store on Ebay but am having trouble with the compatibility or, is that a common error on Ebay? The Brakemotive sets I have found are listed as compatible with the original Envoy but not the XL version which I have linked to my Ebay account. Does it matter? I have read some of the FAQs section and found that SLE and SLT's use 11.8" rotors and the Denali uses a 12.78" rotor. I have also found a 3.5 ton Blackhawk floor jack to buy and some jack stands. I noticed some jack stands are weight rated in pairs and not individually or, is that a fallacy? Well, thanks for anyones time who reads this. I'm new and learning a lot from the forums.