I was wondering if anyone on here knows if the rear overload springs are an option that had to be added to the 2010 3500's or if they are no longer available

 

no longer available.....
overload come only with drw

 

I just got a pic from my buddies 2010 SRW 3500.. It appears they put the DRW main pack on and left the overloads off.

I find that very interesting as that will make the 3500's ride different than the 2500's. From 03-09 the 2500 and 3500 SRW had the same base leaf pack, so there was no difference in ride, now the 3500 SRW appears to have the heavier duty main pack..

I dont know if the spring rates changed in 2010 or not, but on 3rd gens it was 2600 in/lb for the 2500/3500 SRW base pack, and 2800 in/lb for the DRW base pack. Both SRW and DRW overloads were 1300 in/lb.

 

Actually, I thought the 2500 spring packs had a heaver capacity than the 3500 spring packs. The 3500 had an overload spring so it could handle more. Not sure on the spring rates, but this was what I heard from a good buddy. This was on the 03-09 trucks.

 

Not true. The 03-09 2500 hase a 4/1 2600 in/lb main pack, as does the 3500 SRW. The DRW has a 3/1 2800 ib/lb main pack. Both 3500's have a 1300 in/ln overload set on top of the main pack.

The 2500 and 3500 SRW have more leaves, but they are thinner and do not offer the same weight carrying capacity. But they will offer a better ride, if its noticible.