Here is a link to my 66 Valiant slant six build.
http://slantsix.org/forum/viewtopic.php?t=11218&postdays=0&postorder=asc&highlight=low+buck&start=0
Another rear to consider to replace the 7 1/4 is a Ford 8 inch. You need to hunt a little, as it needs to be from a early mustang, comet, also some others, They are like a 9 inch with a drop out center, but less expensive then a Mopar 8 3/4. Parts are readily available. You need the rear from a V-8, as they have 5 on 4.5 bolt pattern (6 cyl rears were 4 bolt). The 8 inch Ford is almost a bolt in conversion for an "A".
I found a 4.10 locker pumpkin at a swap meet for $200, and a drum to drum rear in a salvage yard for $100. Can't beat that price with a stick.
