Here is my upgrade. Fortunately I had it done before any of the springs broke. The trailer was in service to add greasable bushing fittings and the tech told me that he noticed when the springs were off, they had an abnormal bend in them and it was just a matter of time before a failure. (He was not after a sale because he did not have any replacements.)
Ultimately I took the trailer to Dunbar Spring in Phoenix, AZ. They added a full length leaf to the stack and re-curved the original leaf bars. The full length gives support near the eye where the springs break.
I also upgraded to Monroe gas shocks and added the Dexter EZ-Flex shock absorption kit at the same time.
Dunbar has been in Phoenix for ever and I thought they did a quality job and I found them to be knowledgeable and reasonable on the price.
Dunbar Spring Home PageHere is one of a couple of YouTube videos of the place .....
Dunbar YouTube video The end result of my upgrades:
- Additional full length leaf.
- Grease fittings on the bushings.
- Dexter EZ-Flex Kit.
- Monroe gas shocks.
I was concerned that the additional leaf would make the suspension to stiff but all seems fine and after over 10K miles, I have not found signs inside were things are bounced around more.
Nash 24A Travel Trailer by Northwood Manufacturing (6,800 LB)
2,000 Watt Prosine Inverter, 540 Watts Solar, 3024i Controller & IPN
Chevy Duramax (LLY) Extended Cab Pickup