Easy Q on Tahoe front drive shaft boot

I'm going to change the front drive shaft u-joints on a 99 Tahoe old body 
style.

There is a boot over the connection at the transfer case. My old boot has 
two clamp rings. The new boot I bought from GM came in a kit. The new boot

uses a clamp on only the small end on the shaft side. There is no clamp on

the case side. The boot design appears that it would push onto the case
hub 
and fit fairly flush. Is this right? Do I have the right boot? Should I
use 
it or I just use my old boot that is good and find two replacement crimp 
clamps?

The GM kit number is 15084601.

Thanks in advance.

Skimmer