Hi guys, got a problem with my 4-speed trans. It's a 1965 833 with ball and trunion tail shaft that i installed in my 66 cuda. When the car is cold the trans will shift into 1st gear with no problem, when everything gets warmed up trying to shift into 1st gear feels spongy. Most of the time it won't go into 1st after warming up, sometimes it will but will kick right out unless you hold the shifter forward but it never feels like a positive shift after it's warm, rubbery/spongy is the best i can describe it. I'm getting the car out of storage in a week or so and will be putting up on blocks for some general maintenance. Has anyone else had this problem? Any advice would be greatly appreciated. Note: I'm running a diaphram clutch and yes i did disconnect the overcenter spring. Thanks