im having the famous fuel pump problems on my 1990 xlt lariat 4X4. just started doing it. also it starts great on the front tank but i have to crank a few times on the rear. i found a outfit on ebay that sells the pumps for $80.00 apiece, there ac delco #43-103. is this a good deal. are they missing something. should i go ahead and replace both pumps, and is there anything elese i need to replace. i swear i found a website that sells this pump for $62.00 and another pump for my truck for $145.00, but cant find the site now. there must be a difference in the pumps. anyone out there replaced there own pump with a ac delco. the part nmber he gave me is 43-103 and 43-104, thanks.