I am needing to rebuild a old turbonetics i have. It is smoking when i first start it up. I need to know if i have a standard shaft or a big shaft turbo. Does any one know how i can tell the differents between the two shafts.

 

Only you can tell that once you've disassembled it. Get measurements and give Turbonetics a call.

 

is garret t3/t4 a 10mm because a guy told me that the old turbonetics where the same as garrett.

 

IIRC the t04 center housings had either big or small shafts, but the t3 only had the small shaft - which is why the hybrid was possible. Turbonetics are generally modified Garretts.