I have a 2016 38 RL. I have upgraded to the 8000 pound axles and mor-rude IS as well as upgrading to a 21,000 pound pin box. What is the revised weight limit of my trailer or is it the same as original .

Your frame (and Tow Vehicle) will still be the limiting factor. You did the right thing though as the axles, tires and brakes were likely undersized (as they were with our rig).

Take heart in the fact that you now have piece-of-mind. The chances of a tire blowout and causing $6000-$8000 worth of side damage is now limited.

AND...When something does fail or there is a vehicle accident, you can demonstrate to the insurance company that you were well within spec (front to rear).

Rick,

Doing the upgrades are great for safety and peace of mind, but unfortunately the GVWR doesn't change.

Our 2013 was delivered with "E-rated" tires and a GVWR of only 16,000 lbs. I changed to "G-rated" tires before driving off the dealers lot and tried to get the GVWR upgraded to 16,500 lbs, which Redwood provided on coaches that left the factory with G-rated tires. Their rationale being that the GVWR is based on more than the tires ???

I will ask the question that for say rally attendees, where technicians visit a coach, could they issue a revised GVWR when suspension/tires/pin box equipment is upgraded.

That would be a great addition to the Rally!

Of course you changed the GVWR, its just hard to get it documented and titled that way. When we bought our Redwood it had a GVWR of 16,500, the same as every other Redwood, even though we ordered factory 8,000 lb axles and G614 tires. When I called the rep, he talked to Engineering and they sent me revised VIN and capacity stickers for 17,500 lbs because it was factory installed equipment and the manufacturer (Redwood) made an error in the GVWR estimate. Unfortunately they can't change their GVWR for aftermarket equipment you had installed after it was titled. However, by all means you should know what your new GVWR is because it changes your cargo capacity, even if it isn't documented through the vehicle registration.

For your own modifications (not factory), determining a new GVWR for your own piece of mind is pretty easy. GVWR is nothing more than the capacity at the axles (limited by tires or axles rating - whichever is lower) added to the engineering estimated pin capacity. Take your old tire capacity X 4 and compare it to your old axle capacity X 2 and determine whichever number is lesser. Subtract that number from your original GVWR and that will give you the factory estimated pin weight.

(i.e. if you had 7,000 lb axles [X 2 = 14,000 lbs] and Westlake ST235/85R16 tires with a capacity of 4,080 lbs [X 4 = 16,320] then your axles were the limiting factor at 14,000 lbs. Subrract that from the 16,500 GVWR and your factory pin weight was credited for 2,500 lbs. of that GVWR.)

Let's take your new 8,000 lb. axles and assume you kept the Westlake tires (I don't know what tires came with your Redwood). The axles are still the limiting factor at 16,000 lbs compared to tire capacity of 16,320 lbs, however that axle limitation is now 16,0000 lbs instead of the original 14,000 lbs. So add the original engineered pin capacity of 2,500 and add it to the new 16,000 lbs axle capacity and your new GVWR is 18,500 lbs!.

Take the new GVWR and subtract the original dry weight that should be written in one of your cupboards by the door, subtract a few more hundred pounds for the Moryde mod, and that is your new CCC or cargo capacity. If you can't find the dry weight sticker in the cupboard, then it would be pretty safe to assume that net gain to your GVWR could be applied directly to your original stamped cargo capacity (yellow stickers).

Legally it's whatever the manufacturers tag on the trailer states unless you can have it recertified somewher/somehow at a higher GVW. Most if you're in an accident (hopefully NEVER) the authorities & insurance will only go by the certified GVW posted & most likely won't/don't care about ANY upgrades you may have done.