greasemonkeychef

iTrader: (6)

I bought my timing cover kit from autozone and it came with 3 different o-rings. Whick one do I use for the GTO pickup tube? I tried the biggest one and it didnt seem to fit. I have heard the o-ring can be a issue so I want to get it right the first time.

Paul 75 L82

iTrader: (1)

I think I used the Blue one from Fel Pro.

greasemonkeychef

iTrader: (6)

Anyone else know fore sure? Kind strange that they have 3 o-rings in the kit but no istructions for applications?

dodson55

iTrader: (18)

I use the blue one on f body and red on trucks that's the way the factory did it so I just do what they did

Anthony Williams

iTrader: (3)

I would go and buy or at least ask to see the right one from GM, think of what you have to loose for the cost of the using correct oring. See bold below!

BrntWS6

iTrader: (7)

use the one closest to stock size. The big one is for trucks, I just went through this when I did my H/C and put in a new oil pump.

dodson55

iTrader: (18)

you could go buy a gm one and know you have the right one also they are not very exspensive at all

chrisfrost

iTrader: (8)

I have a 5.3L truck engine that had the thick blue 1 in it . I believe they all recieved the blue 1 starting when they changed to the blue 1 , almost 100% positive of this , but by all means check with GM , can't go wrong .