I have a 1952 8n , i am leaking transmission fluid though the lowerlink
shaft on the rear end. is there a way to take the old out, without
taking the whole drive off.

ANGLEO......this question should be on the other section of the board,however the answer is no. don b

I think Don B is right. I have had several people tell me they could reach the nut by removing the pto shaft, but I couldn't. I had to remove the whole trumpet assembly to replace mine. If it is leaking from the bolts, they are a press taper fit, and if the hole has wallowed some, you will need to repair the hole. I used JB weld and so far it is still holding.