Hey Guys....
I tried to post from out of town yesterday but the site would not recognize me and post was rejected!!!???
The Fel-Pro "Ready Sleeve" part number is 99376 The kit includes the install tool as well.
The sleeve effectively increases the rear seal journal diameter about .009" and has stopped leaking in every case I know of!!
The older "rope seal" blocks that eventually used two piece neoprene seals were not machines with the greatest of accuracy since the rope made up for any variations. If the seal groove was a little too deep the neoprene seal will not be squeezed enough to seal and pesky leaks ensue. I changed my neoprene seal 5 times and even tried a rope.....CANNOT do a rope right with the crank in place!!! Sleeve and a new neoprene seal fixed it......Over a year and NO LEAKS!!!! (Knock Knock!!)
It works so well that the block plate is rusting a little!!
I also have a little trick for one piece seals with coil spring tensioners.....email me for details.
Jack
