Ok i have a 78 cutlass supreme the mods i have done is swap motor with 350 chevy with performance package, also swapped the trani for a 700r and i cant keep the tires stuck to ground with the garbage stock rear end in it!! one whell spins the other kicks for about 50 ft when i put my foot down from a stop. i need a new rear end BAD and i want an easy swap and affordable whats my best bet for my set up??? (and i already looked for the stock turbo buick rear end almost impossible to find!!) I need some tips anything!?