Are these additional lift blocks? Trying to see which 5100 I need

[cajunduck1]

 I seem to recall reading that the 2019s don't have any blocks on the rear end like the last generation did. So, am I to assume that these are 2" (which I measured) lift blocks? I just want to make sure so I can order the correct rear shocks.  Thanks in advance. 

Edited March 22, 2021 by Donald Plaisance
Trying to figure out which 5100s I need.

[lapoolboy]

Yep 

[cajunduck1]

So, is 24-309516 the correct 5100 shock? And what do they mean by appropriate bump stop extension?

[lapoolboy]

Yes, that is the TB/AT4 part number so it will fit your truck with the 2" block.  The bump stop extension is just that - it extends the bumpstop down to keep the shock from bottoming out.  Or, like the TB/AT4 does, it is just another block that bolts to the top of the axle.  Either way, it just lessens the distance between the bumpstop and the axle.

[cajunduck1]

38 minutes ago, lapoolboy said:

Yes, that is the TB/AT4 part number so it will fit your truck with the 2" block.  The bump stop extension is just that - it extends the bumpstop down to keep the shock from bottoming out.  Or, like the TB/AT4 does, it is just another block that bolts to the top of the axle.  Either way, it just lessens the distance between the bumpstop and the axle.

Which ones should I go with to accompany the shocks?