Yeah...I just did this today (2014 Silverado 1500 5.3L). 100% wouldn't recommend doing it if you don't have to. Glad I read the above post about dropping the front axle a bit to get the oil cooler lines out/in. Also just getting on the bolts to take the cooler in/out was very difficult. I ended up pulling the driver front fender skirt so I could come in from the top side...still needed 18" of socket extensions and a 3/8" u-joint to make it work. Maybe someone with smaller hands could do it more easily; idk. Also in dropping the axle there was a complication because 1 of the 4 bolts was covered up by something...not even sure what it is. Had to remove 3 electrical plugs (which also was not easy...broke the securing clip on one of them) just to get enough space to put a wrench on it. Fortunately they weren't torqued too tight, because the wrench had to go on very slanted. Suffice to say, it's not an easy job. If I had the $600 in labor to pay the dealership, I'd have let them do it.
Yeah...I just did this today (2014 Silverado 1500 5.3L). 100% wouldn't recommend doing it if you don't have to. Glad I read the above post about dropping the front axle a bit to get the oil cooler lines out/in. Also just getting on the bolts to take the cooler in/out was very difficult. I ended up pulling the driver front fender skirt so I could come in from the top side...still needed 18" of socket extensions and a 3/8" u-joint to make it work. Maybe someone with smaller hands could do it more easily; idk. Also in dropping the axle there was a complication because 1 of the 4 bolts was covered up by something...not even sure what it is. Had to remove 3 electrical plugs (which also was not easy...broke the securing clip on one of them) just to get enough space to put a wrench on it. Fortunately they weren't torqued too tight, because the wrench had to go on very slanted. Suffice to say, it's not an easy job. If I had the $600 in labor to pay the dealership, I'd have let them do it.