tranny issue
 

i have an 88 camry v6, and the tranny will fail in a few months. i like this cars motor, but the stock at trans has crappy gear ratios.(my volvo has less hp and is 1000 pounds hevier, but gets to 40mph faster. is there another trans(at) that will fit the v6 but have better gear ratios?
is there a trans from a lexus that will fit?
just wanted to upgrade since i have to buy a trans anyway.