Fat Bob Performance 8000 rear shock help

I just ordered a pair of these from fat bobs because I am doing a 1.5 in. AAL. Truck is about to roll 50k so I figured I would throw some new shocks on while I've got it torn down for the new leafs. My question is, has anyone had any experience with these? Will I need to relocate them or will they fit just as the stockers do? If I do need to relocate, what all is that going to entail?

Thanks in advance

 

bump

 

bump...again

 

If they are stock replacements, I wouldn't think you would need to relocate

 

The website description is kind of vague, but it says they work with a 1-3 inch lift so i didn't know if the shock body is any longer than the shocks on there currently

anyway heres the link

http://4x4.fatbobsgarage.com/toyota...-series-rear-shocks-pair-2005-2011-p7559.aspx