Hi Paul and welcome to the PRF site. You have the dubious distinction of being member #300 so please go to the new members section and give yourself an intro!
We also have sections for the area you are in and it is good to stop in there to say hi and maybe meet other guys & gals local to you.
As for your question here, I'm pretty sure you will have a problem with the Silverado being a bit too narrow but others with your machine or truck might jump in and make some suggestions.
I have an F-250 but it has the fiberglass hard cover so I trailer my rig anyway. I can't imagine either an RZR or full size Ranger fitting in the back of any pick up because my trailer is 5 X 9 and the RZR barely fits on it. With the optional Polaris 14" wheels the RZR is 54" wide and if you add front and/or rear bumpers then you increase the length quite a bit.
There are probably a few guys here who can quickly answer this question, How much is a new rear window for your truck????? :2funny:
Gary