I need some serious HELP

I rebuilt my rear axle and re-gearing sometime last year.And now I'm having the same problems which is leaking.Rear differential oil.This will be my third gasket for the pinion. Two in one year.

What is going on here?

 

Did you use FIPG?

 

Pinion or diff housing seal?

 

as suggested, youre not showing the big picture...
could it be coming from your pinion seal & trailing back?

 

Double post

 

Seal

 

Yes pinion seal and by draft moving to the rear end.

 

And basically you’ve had to go through this procedure several times? I was just confused where you said gasket but usually something against a rotating surface stopping fluid passing would be called a seal instead of a gasket but anywho:

https://www.tacomaworld.com/threads/2nd-gen-rear-diff-pinion-seal-replacement-diy.544781/

 

My apologies. It's a seal, normally it would be a gasket.