99 Buckets - Little Help Please

[joesgreen67]

Hey guys-
I've owned my truck for 13 years now and I'm ready to install some newer seats. Picked up some 99 Silverado seats with integrated seat belts. Been reading that alot of you guys have installed these on your own rides.
I have the drivers power and passenger manual config.

Does anybody have a good layout procedure? I still have the tank in the cab, but I can't see that being an issue since the back of the seat would hit the cab before the tank.

I know from searching on this forum that I'll need to reinforce the floor with some 1/4" plate.....but do I need any spacers under the rear mounts?

Any pics showing the seat mounting?