Jockey, by the time you factor in everything needed to do the change over, depending on some of the specifics you will be looking at around $4000.00. That is also figured with a Tremec, but the David Kee Toploaders are right at the cost of the Tremec, I think they are $100-200 cheaper. There will also be some intangibles to deal with, like, will the crossmember work with a standard transmission, what type of speed-o-meter is it mechanical or electric? If you have anymore questions let me know and I will try to help you the best I can, unfortunately I only deal with the Tremecs, but the basic principles will apply.
jimig@standardtransmission.com