Hello

I have an early 1972 240z (5/72). It states that those stock brake boosters were 6” in diameter. I did a search for a 6” kit and didn’t find anyone that had them. Are they available out there or are they custom built on request and that’s the reason they don’t show up on the website.

Thanks

I bought my 69,xxx booster from amazon.com and only had to paint it black. Works great on my early '72.

Do you have a part number and manufacturers name?

I went to the Harmon classic brake site as well as to the Power brake exchange website and there’s no mention of having a 6” kit. Any help would be appreciated.

My memory is failing but I thought the smallest one was 7".

Maybe call Harmon classic or PBE and they can walk you through measuring and identifying yours and whether they have parts for it

1 hour ago, Patcon said:

I thought the smallest one was 7".

I agree with Charles.

Do you have a brake booster? Box it up and send it to Power Brake Supply. Get it back 3 days later like new. 

That 6 is a typo i'm sure.. the small 240z brake booster's are 7 inches or 178 mm.  diam.

Thanks so much for everyone’s information. I’ll send it off to Power Brake Exchange. I was looking on the carpartsmanual.com website on the master vac for the 240z and it showed that the early 1972 240z had a 6 inch size master vac.

#	part#	model	from	to	qty
1	ASSY-MASTER VAC 6INC
	47210-E4600			7105	1
	47210-E4601		7106	7108	1
	47210-E8700		7109	7206	1
	ASSY-MASTER VAC 7 1/
	47210-N3001				1
	47210-N4300		7508		1

@Zup

Good to see you around! I was just wondering how you were doing.

15 minutes ago, lcord said:

#	part#	model	from	to	qty
1	ASSY-MASTER VAC 6INC
	47210-E4600			7105	1
	47210-E4601		7106	7108	1
	47210-E8700		7109	7206	1
	ASSY-MASTER VAC 7 1/
	47210-N3001				1
	47210-N4300		7508		1

Where did you clip that?