When got my new silverado crew cab 5'8 bed z85 4x4 ,it didnt come w/ the trailering package and I tried to get the dealership to included it but they ...

When got my new silverado crew cab 5'8 bed z85 4x4 ,it didnt come w/ the trailering package and I tried to get the dealership to included it but they just dropped the sticker price . So my question is whats the closest aftermarket trailer hitch w/ the wiring harness that goes to the cap on the back bumper an OEM exact any suggestions or input or is it better to order the gm trailering package

Drawtite or uhaul have good hitches, there all pretty close to OEM.

I wound up getting a OEM Hitch on Ebay and It was easy putting it on my 4 yeah old could of done it the only pain was tighting up the 4 back bolts w/ the locking nuts.
what a pain

I believe the towing package also includes extra cooling for transmisson.

I would try craigslist.. I found one for my old Blazer a few years back for 40 bucks. It looked brand new.

The towing package...not to be confused with the HD Towing package (which comes with different rear shocks and (i think) stronger leaf springs...Two different things. Anyway the regular towing package gives your transmission extra cooling which allows you to pull up to 9500 pounds with the crew cab 4x4 3.42 gears. You are actually rated to tow 100 pounds MORE then the 6.2l with the same gearing. So yes, you can buy a hitch and install it on your vehicle and be able to tow but the amount you can tow will not be near the same amount as having the factory "tow packages" put on your truck. So depending on what you want to tow is how you should proceed.

Sorry, I have the 6.2l on the brain lately

I originally had a 1999 Silverado and the factory receiver was junk. It was designed so that the bumper would take some of the up/down load which really didn't work. Whenever I would hit bumpy roads the receiver would flex so much that it wouldn't overcome the bounce or what the trailer folks call "porpoising". I ended up installing a 2" Putnam XDR class V receiver knowing that I would never use it to it's full potential. Removing the old receiver and installing the new one took less than an hour with no drilling required. The advantage of this receiver is that it just doesn't flex. I liked it so well that when I bought my 2009 Silverado, I found it it would fit that truck too so I removed it from the 99 and put it on the 09.

Putnam is now out of business but Curt Manufacturing now uses Putnam's XDR design. For most 1500s since 1999, the Curt 15522 is worth looking into.

http://www.curtmfg.com/index.cfm?event=hitch&selectVehicleYear=2008,2009,2010,2011&selectVehicleMount=Rear+Mount&selectvehiclemake=Chevrolet%2FGMC&selectvehiclemodel=Sierra&selectvehiclestyle=1500&productCode=15522

Here is how it looked on my 1999. Of course you don't need the electrical connector on the newer trucks since the factory one is in the bumper.

I just replaced my OEM hitch with a B&M hitch. mouted the trailer connector in the bumper

I just got the build list for my 2010 and for the trailering package it actually lists it as a Reese Hitch.

Check out. http://www.etrailer.com/. Give them a call and ask them that same question. They will set you up. I have been using products from them for years.