TSB Leaf Springs and 3rd Gen OR same?

I just got the TSB leaf packs installed on my 09 DCLB. I also have a set of OEM leaf springs sitting in my garage from a 2018 OR. They have different part numbers so I was wondering if one was better than the other. Thanks!

 

Both are 4 leaf packs and should be the same. PN could be changed due to substitution only, can’t imagine they’re different rates.

 

Awesome thanks. Just wanted to be sure

 

Part numbers are definitely different. I have the TSB leafs on my 2010 and just bought a full suspension off a 3rd gen so I checked the markings on both. Front and rear shocks, front springs and rear leafs are all different p/n's. Not sure how much they are functionally different though.

 

Same here. I have front and rear take-offs from a 15 OR and 18 OR. I've read the shocks are the same but the coil spring rate is different between gen 2 and gen 3. I just wasn't sure about the leaf packs