Hey man, its easy. Just take your time and match the old O rings to the new ones one at a time. Im not familiar with the exact pump used on your model but I suspect that they are very similar to mine.
Drain the fluid out of the pump as best you can with a suction device such as a turkey baster. Remove the return line and any excess fluid will drain out of the reservoir. Cleanliness is very important. Take the pump to a clean well lit area to work on it. As you remove parts, remember the sequence so you can get it back together again. As you reveal O rings replace them after carefull comparison to the new ones. You will probably not use all the new parts as they often have several models that covered by the rebuild kits.
Not too much to it. Good luck.
I got too many cars!! Insurance eats me alive. Dave
78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k