Possibe F-body 8 3/4 rear??

i have an 8 3/4 full rear end housing w/ pumpkin (non SG, dont know gears). from flange to flange is measure roughly 54" so according the mymopar.com, it either an Fbody 8 3/4 or a 66-70 Bbody 9 3/4. it is LBP. any way if anyones interested throw up an offer. buyer pays shipping, but id prefer pickup if possible. Ill see about getting pics up later on in the week

thanks