Cheap brake master cylinder?

[RT Hunter]

I need a new brake master cylinder, and noticed eBay has them going from $45 - $150+

Here is the $45:

http://cgi.ebay.com/ebaymotors/NISSAN-DATSUN-240Z-260Z-280Z-BRAKE-MASTER-CYLINDER_W0QQcmdZViewItemQQhashZitem2eaa4dcc04QQitemZ200425720836QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Here is the $150+:

http://cgi.ebay.com/ebaymotors/Datsun-240z-260z-280z-Brake-Master-Cylinder-NEW_W0QQcmdZViewItemQQhashZitem563b05f922QQitemZ370357434658QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

What's the difference? Could I just use the $45 version, and put my original plastic reservoirs on them?

BTW, this is for my 77 280z

[gnosez]

Black Dragon sells ones for 280s for $100. and I'm pretty sure you can still get one from Nissan directly. I have the $139.95 280ZX version in my 240 (15/16) but you need to get the correct size for your car or application.

Save money on other things. Spend what is needed on everything that controls the steering and brakes.

[Walter Moore]

If cheap is the primary concern, both Advance Auto and O'Reilly Auto list a master cylinder for a 77 280Z at $35.

[RT Hunter]

Thanks guys!

Well, I'm not trying to be cheap, but just don't want to be ripped off if they are in fact both of equal quality... shrug

[DeMoore]

Just replaced mine about a year ago at autozone for around 40 bucks. I have a 78.

[IdahoKidd]

Just bought one at O'reilly's and feel very confident. New, not rebuilt. Not going to give it a second thought.