Question on changing legal GCWR

[gmcman]

While looking for an 8.1 Burb, I come across some 3:73 models which have a factory GCWR of 16K. Since the only change to the GCWR of 19K with the 4:10 models was the gears, has anyone changed the gears to increase the legal GCWR? By doing this also with documentation changing the legal GCWR?

The GVWR is the same 8600 LBS with both axle ratios, only the GCWR changes.

I understand most agencies won't pay much attention to more than the tow vehicle GVWR, trailer GVWR, and tire ratings.

I'm only looking to maybe change the legal GCWR if it came down to this.

If anyone has gone through this successfully, please share your thoughts and experience.

Thanks.

[MFL]

Agree ^^^^GVWR is a manufacturers drive train rating, stating they will warranty your vehicle, if you stay within the amount your truck is designed for. You can change gearing, if you wish, and your drive train will be capable of handling the difference.

Not a legal issue.

Jerry

[wing_zealot]

The GCWR is just that, a "rating". There is nothing "legal" or "illegal" about it. If you want to change the gear so it tows better, go for it.