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4.88 Gears and Draw-Tite 41930 Class V Hitch

Auto Parts Guy

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I'm back with more questions, more like opinions or assurance that I'm buying the right stuff. I'm looking to set up my Avalanche to be the best overall tow rig it can be for what it is.

Gearing:
I plan to regear my 3.73 axles to 4.88. I have an appointment on Monday the 10th with a local gear shop. I'm getting an Eaton Truetrac Locker installed to replace the G80 factory carrier at the same time. I plan to always run a 35" tire, but could range in the 33-37" range depending on how life changes. This will be the first automotive 'repair' that I haven't done myself in probably 15 years or more.. Something between a 4.10 and 4.56 puts me closer to stock, 4.88 gives me a little extra. That's my logic anyway. Thoughts? Would you recommend something different or additional while I'm doing this? MPG? Mehhh.. who cares with 8.1L of displacement.

Hitch:
Looks like the consensus is the Reese 45013 or the Draw-Tite 45515 or 41930 is the one to go with. I'll probably use the Class V with the 2" receiver, so the 41930. Truth is, I'll probably rarely tow over 6k pounds much less 10k. But i want the assurance and ability to safely hook to a trailer with a skid steer or mini ex or dump trailer. This truck will double as a family camping vehicle to pull a small camper 19-22' that i don't yet own. Question is, besides the 7-way plug, is this Draw-Tite 41930 a direct bolt on for the 2500 Avalanche, specifically 2004 model? No issue with the evap canister? Does my logic make sense or would you go with something else? All of my mating recievers are 2" so I didnt really want to run the adapter unless there is good reason to install the 2.5" class V. I will also buy a nice anti-sway system. Any tips or pics of your hitch installed? Any pics of your 7-way in the bumper? Sounds like a cool mod.

Air Springs:
This may come at a later date, but looks like many are happy with the firestone bag setup.

Brake Controller:
I have a Reese and Hopkins, so those are cheap enough to replace later if I don't like them.
 
Last edited:

Auto Parts Guy

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Joined
Dec 3, 2021
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Greenville, SC
So I dropped off my truck to be regeared and factory carrier replaced with the locker today. They are super busy, hope to have it done by end of the week though.

0110221114a.jpg

RPMs with stock (3.73) gearing @ 60 in 1:1 with 35x12.50s
0110221057b.jpg


My hitch also came in today.
Can't believed they shipped it like this. Maybe it just came out of the box, hopefully all the hardware is there...
0110221638.jpg
 

2003VAAV

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VA or FL or NC or ?
So I dropped off my truck to be regeared and factory carrier replaced with the locker today. They are super busy, hope to have it done by end of the week though.

View attachment 233778

RPMs with stock (3.73) gearing @ 60 in 1:1 with 35x12.50s
View attachment 233779


My hitch also came in today.
Can't believed they shipped it like this. Maybe it just came out of the box, hopefully all the hardware is there...
View attachment 233780

I have the same hitch on my 1500. It's a beast of a hitch but their shipping is the worst. Mine came in a "box" but the hitch still looked like yours, only difference was the box with parts of the hitch poking through, no packing, wrapping, nothing. The hardware was in the receiver end like yours looks to be.

I touched mine up at each chipped spot with some RustOleum rust inhibitor and then a shot of RO gloss black.

BTW, I had to make some spacers out of scrap aluminum for the forward mounting tabs. I have a feeling that you may need to as well, the ones the hitch come with were about 1/2" too thin. It seems that some trucks need more, some need less.
 

Auto Parts Guy

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I guess for the price, it is what it is, it was $164 shipped. I'll do the same touch up like you did once i get it installed. I'm surprised they ship that way and FedEx doesn't say anything. But glad it's here, hopefully it's not too bent.

Are the spacers to sort of level out the hitch on the frame? I should be able to come up with something.
 

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I bought a set of tires from Tire Rack.

They came in their birthday suits.
 

Randy

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Mine also came in a box with zero packaging. It had a few scratches on it and since I had to remove the welded-on wiring jack to clear the rear bumper cover, I went ahead and sanded/painted the whole thing...

I didn't have to use any spacers, everything lined up perfectly...
 

Auto Parts Guy

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Dec 3, 2021
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Greenville, SC
Got my truck back from the shop yesterday with the new 4.88 gears and locker. It's perfect to me, feels like it should, RPMs arent too high. Still in break in phase though. But be warned that the ABS light and Brake light will come on after about 5-10 mins of driving because of the wheel speed sensors reading differently from the VSS. Speedometer reads about 30% too fast right now. So I'm thinking it's time for a Diablosport tune, maybe get a few horses and correct the speedometer and gears at the same time. 👹
Unless someone knows of a better option?

My dad is visiting us this weekend so I may see if we can get the new hitch installed. An extra hand is probably not a bad idea. We're supposed to get some snow tonight and tomorrow (Greenville, SC area) so we'll see how it goes.
 

2003VAAV

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I guess for the price, it is what it is, it was $164 shipped. I'll do the same touch up like you did once i get it installed. I'm surprised they ship that way and FedEx doesn't say anything. But glad it's here, hopefully it's not too bent.

Are the spacers to sort of level out the hitch on the frame? I should be able to come up with something.

Yes, at the forward (the long end) holes closer to the axle, not the two rear holes. You may not need on a 2500, mine is on a 1500.

IMG_20201114_183628424.jpg

I actually ordered two hitches because the first one was so chipped up. The second one was worse, not only chipped but bent! It's unbelievable that they ship that way. For the price it can't be beat it is solid and a great design with the long legs. I couldn't get past the short mounting on factory and other brands, does not make any sense to me to have all that load in one area on a formed frame that is known to bend.
 
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