I'm looking to replace the power brake booster and master cylinder on my '78 Cutlass Supreme and have found a few options to choose from but am unsure of the differences between them. I've decided to go with the right hand drive S10 master cylinder with a 1" straight bore and a replacement 9" dual diaphragm booster because both of mine leak and I'll be running 2.75" bore calipers on the front. No mods for the rear have been chosen as of yet.
With very little research I found that the booster for 1978 is somehow different than the one listed for '81, and there's a third model listed when I search for 1985. The boosters shown are the same across makes though- Olds or Chevy, Monte or El Camino doesn't seem to matter. I chose '85 for no particular reason but '82 - up are coming up the same.
For '78 I'm seeing Cardone 5471201
For '81: Cardone 5471271
For '85: Cardone 5471243
I know that '78 had different rotors and outer wheel bearings, and that the low drag calipers and metric wheel stud threads came about in '82 but what would that have to do with anything? I could see the '82 and up models having metric threaded booster studs instead of SAE but other than that I can't think of anything unless the rods are different.
I think the last time I replaced a master cylinder was nearly 25 years ago. Can anyone shed some light on this for me please?
With very little research I found that the booster for 1978 is somehow different than the one listed for '81, and there's a third model listed when I search for 1985. The boosters shown are the same across makes though- Olds or Chevy, Monte or El Camino doesn't seem to matter. I chose '85 for no particular reason but '82 - up are coming up the same.
For '78 I'm seeing Cardone 5471201
For '81: Cardone 5471271
For '85: Cardone 5471243
I know that '78 had different rotors and outer wheel bearings, and that the low drag calipers and metric wheel stud threads came about in '82 but what would that have to do with anything? I could see the '82 and up models having metric threaded booster studs instead of SAE but other than that I can't think of anything unless the rods are different.
I think the last time I replaced a master cylinder was nearly 25 years ago. Can anyone shed some light on this for me please?
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