k doing a 65 rambler american 220 have a 360 4brl and manual trans. now i have a 73 gremilin x for parts rearend is the same width and would update the ramblers rearend to get rid of the goofy driveshaft deal. but i don't know what the rearend in the gremlin is as far a gear ratios and if it could be a posi. i had read that the 65 ramblers could be a 4 10 gears and be posi. and that would be cool. anyone have any info as to what i should do with this. thanks.