A buddy of mine has a SP400 out of a 67 Riv. It's the short shaft style. If he has a professional rebuild done on it with a mild shift kit, what's it worth? I know nothing about automatics.
http://www.paeenterprises.com/paeproducts7.html http://www.paeenterprises.com/paeproducts8.html above for Jim Burek's site pricing on SP transmissions http://www.trishieldperf.com/transmissions.htm above for Jim Weise's site pricing on SP transmissions Also above are in no particular order and not sure if they are their current pricing. I figure it's better letting them speak for themselves.