help me with my gas tank prob!! please.

[leland]

ok i have a 71 sub 1/2 ton 2 wd i bought a stock replacement gas tank from lmc $$$$ it comes with straps, sending unit, tank, and 2 j bolts. ok my problem is there is no holes on the bottom of the frame rail, however there are holes on the side.s straight bolts wont work. the kit comes with 2 j bolts but it semms like i need 4... has any one came across this cause i dont have the old parts my dad took them off before he went to iraq, so i im pretty much putting it together what i think looks right lol.. can any one help please. thanks:help