Help, I had a severe ATF fluid leak that I initially attributed to failure of the front seal in the transmission. I have pulled the transmission and have the following questions:

1. Flex plate, why did my flex plate fail - see picture


2 On the input shaft, which I think is the splined shaft shown coming out of the transmission in the following picture, the axial end-float should measure 0.2 to 0.4 mm(0.008 to 0.016 in.).


Have I understood the manual in that the axial end float is measured fore to aft, from the torque converter towards the transfer case?

3. What should my radial run-out be on the same shaft, see picture:


4. Should the splined shaft indicated by the red arrow turn, and if so how easily, see picture:


5. How easily should the ATF pump turn?

 

a cracked or broken flexplate it is not an uncommon problem, i have probably seen 6 or so on here

 

any manufacture's or distributor's flex plate recommended to avoid this in the future?

 

i would just grab a used one from Paul Grant to be honest

 

I have them if you need one.

 

Just out of curiosity, anyone know how frequently do the flex plates crack or brake on the disco 2s?

 

All I can say is that I sell every one I pull that's in good condition. I can't recall selling many for DI's or RRC's when they were of comparable age.

 

I'm dreading that flex plate as I feel mine is on its way out. There is a vibration (shock) in the drive train translating into the entire body. New u-joints, front shaft, rotoflex coupler... still there. Only thing left I can think of is that damn plate.

 

I don't suppose a D1 or RRC plate would fit?

 

New flex plates are $45 so why buy a used one? How many hours of labor to install the new flex plate?