f body parts wanted

hi there, im looking for a 8 1/4 (8.25) suregrip diff complete assembly with either 3.23 or 3.55 gears to suit my 78 dodge aspen se, currently im running 2.71 gears i think? which is good for the motorway but not so good for hooning, i can supply an address in the us for delivery for delivery quotes

also where is the best place to buy a new headliner card the currnet one has seen better days, and i like ti get a new one black if possible or maybe tan or brown

thanks for any info given

78fourdoor