Indicated by the name, non prescription eyewear, without a lens prescription, also called clear lens glasses, is less important in function, but is quite critical and helpful in enhancing the wearer's facial look.
The 2011 Buick Enclave is rated for a maximum tow of 4,500 pounds. Back the Enclave up to the trailer's tongue. Ask someone to stand by and direct you. When the Enclave is in position, lower the trailer coupler onto the Enclave's hitch and lower the latch.
Most dealers just want to sell the trailer/vehicle and will mislead you as to what the vehicle can actually pull. I just bought a new 28'TT that is 4400# dry weight & 6600# loaded weight. The truck I pull with is a 3/4 ton Silverado Ext Cab 2wd w/5.3L and 3.73 rear gear ratio rated @ 7200 GVWR.i! We bought a 6500 lb (dry weight) travel trailer and are looking at a Chevy Silverado 1500 to tow it. It is a 1997 extended cab; short bed 350 cc engine; 5.7 L; 3rd door; heavy duty tow package, heavy half. Can't find in the owner's guide the towing capacity or rear axle ratio (assume it's 3.73).