Wheel Cylinder Question?

[ep67bro]

My brakes on my 73 frame off are a mess. So I was diging through my parts and I found two new wheel cylinders. The problem is they dont have the original boxes anymore so I have no clue what axle or wheel they are for. The two look Identical but they have a different casting number on each one.
One has NB02 the other NA03? They apear to be for the rear passenger side or front drivers side? I would love to use them and save a few bucks any ideas? It appears that the front and rear cylinders are the same but I could be wrong!

 

[Viperwolf1]

Front cylinders are 1 1/8" bore, rear are 13/16".

 

[Apogee]

Unless the rears are 15/16" like they are on some EB's (including my '77)...

It's fairly easy to pull the rubber end boots and measure the wheel cylinder bore and/or piston diameter directly, then there isn't any doubt. After that, it's just a matter of determining whether it's a left hand or right hand unit based on the direction that the 3/8-24 SAE port is pointing. You can always check out the pictures of the parts at an online auto parts store if you're still not sure.

 

[Viperwolf1]

Yeah 76-77 are bigger.

 

[ep67bro]

Thanks for the info.