Arcdef Posted February 22, 2021 Share Posted February 22, 2021 (edited) Hi, As the title states need some help identifying what was fitted by previous owner as the booster and/or master cylinder are faulty and want to replace both to ensure braking system is up to scratch. I haven't found any other master cylinder that matches this - is has AB-35 embossed on the side and has horizontal mounting holes (these don't match the booster as you can see below). Thanks, Edited February 22, 2021 by Arcdef New photo Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 22, 2021 Share Posted February 22, 2021 This is the 280Z with the 3UZ swap? You should put your car info in a sig or just mention it every time. Looks like the PO had some skills and made a different master cylinder work. That stack of washers on the top bolt is a clue. Try to find out if the booster is correct for the car and look at 280Z master cylinders. Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 22, 2021 Share Posted February 22, 2021 Looks like you're missing the spacer/adapter also that goes between the booster and MC. https://zcardepot.com/products/brake-master-cylinder-booster-aluminum-spacer-plate-240z-260z-280z?variant=19279175647345¤cy=USD&utm_source=google&utm_medium=cpc&utm_campaign=google+shopping&gclid=CjwKCAiAyc2BBhAaEiwA44-wW3ZsP-H-fUnyxq-qimqBGJrRq33HmeIh_yfhvkh2NYyYrS1l8tYQjRoC0U8QAvD_BwE Quote Link to comment Share on other sites More sharing options...
Arcdef Posted February 22, 2021 Author Share Posted February 22, 2021 30 minutes ago, NewZed said: This is the 280Z with the 3UZ swap? You should put your car info in a sig or just mention it every time. Looks like the PO had some skills and made a different master cylinder work. That stack of washers on the top bolt is a clue. Try to find out if the booster is correct for the car and look at 280Z master cylinders. Yes that's me! Have updated signature. Yes he sure did have some skills, pretty sure the booster is standard as measures 8inches. The master seems to mount with 3 bolts - 2 on either side and one below. I assume the space is missing as it has a different length push rod. Thanks Quote Link to comment Share on other sites More sharing options...
NewZed Posted February 22, 2021 Share Posted February 22, 2021 Does it have stock drums in back, and disc up front? Might be that the PO went with a different MC bore if he did some brake mods. Since the MC is not what came on the car it might be that it's already "newish". It looks new. If things work right, maybe just leave it alone. Quote Link to comment Share on other sites More sharing options...
Arcdef Posted February 23, 2021 Author Share Posted February 23, 2021 Yeah drums on rear with the Toyota 4 pot calipers up front. Quote Link to comment Share on other sites More sharing options...
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