904 Shift Kit Home-Installation
TransGo TF-2 is the best shift kit you can buy to keep your 'automatic' in Drive and crisp, hard shifts. If you pickup this book;
http://www.amazon.com/dp/1557883998/?tag=joeychgo-20
it goes over step-by-step how to install a TF-2. (727 and a 904 both share the same valve body).
Here is another good read.
http://www.cuda-challenger.com/cc/index.php?topic=33093.0
bulkpart.com (maybe bulkparts.com) sells them.
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