Have pity on a newbie

[mazdarado]

I've been around trucks and cars alot but this is my first true GM (besides my wife's Blazer and my old Grand Am yuck). I have a 72 GMC 2wd short bed. From what I can gather it was a big block truck. Did 402 trucks come with 4 speeds or were they all th400s? Mine has the low hump so I'm guessing it was an auto. Anybody have any pics handy of what the cross members should look like? It now has a 350/350 in it. It was green and is now blue with black interior. They put a newer tilt column in it, cut the radio hole, and filled the original ignition and lighter I'm also 95% sure it has a 73 up 12 bolt under it too. The reason I think this is the driver's side shock lower shock mount has been cut off and rewelded on and they're directly in line with the frame instead of offset. Thanks in advance for the help. Also can anyone tell me what year this grille is? I'm sure it's aftermarket.