Opel GT Forum banner

Brake pad/shoes specs

1.7K views 8 replies 4 participants last post by  oemoilleaks  
#1 ·
I'm looking to get some more uprated pads and shoes made (Porterfield R4s) but I can't find the schematics/dimensions for the pads and shoes.

Does anyone know where these could be found? Or have them handy?

Or are there known compatible pads and shoes I can look to for reference?
 
#2 ·
BMW for the front disk pads.
Easy to get cross references if you look at them from Rockauto. Just click on the item you need for your car and then click on the part number and it will show compatible vehicles. Then you can search those vehicles for options.
 
#3 ·
BMW for the front disk pads.
Easy to get cross references if you look at them from Rockauto. Just click on the item you need for your car and then click on the part number and it will show compatible vehicles. Then you can search those vehicles for options.
I was doing this all last night and when I'd look up the pad schematics on the manufacturer's site, they weren't always the same dimensions.

That's why I am looking to confirm here so I don't order custom shoes and pads that ultimately don't fit.
 
#4 ·
Porterfield never had Opel rear shoes (30 years ago) , unless something changed.

I always sent them my cores to be relined, so they can easily measure off that.

Front pads are easy, the pre-1975 pads fit hundreds of different cars, and the 1975 ‘big brakes’ are equally commonplace on European cars.
 
#6 ·
What cars specifically have overlap for pre75 mantas front pads?

I was planning on sending them shoes to be relined, but I was hoping there might be some overlap that would allow them to get started without having to need the cores.