Can I replace my original 11" booster with a 9" and get the same angles, spacing and master cyl pocket etc? I have drum brakes front and rear.
FWIW when I was looking for a booster I noticed the 9'' booster is a single diaphragm..... The 8'' is a dual.... I got zero input on the 9 ... the 8 feels very good. Advice make sure that whoever you buy it from state it fits A- bodys.... this style fits. https://www.ebay.com/itm/313546237785 This style does not....https://www.ebay.com/itm/202250330046. Notice seller states fits nova & chevelle it dont.......
I just want a shiny new booster, but extra clearance (a 9 inch) for the valve covers is always handy. Just wondered if it's worth the trouble vs a stock replacement. Appreciate your opinions and advice.
On Chevelles.com I read a few guys did not recommend using the 9''.... I also read that it felt like a cross between manual brakes and power.... I do know that the 8'' works real good on my 67lark. I wish it had the braking power as my 92 caprice LTZ but those are 1/2 ton truck brakes to the best of my knowledge...... The 8'' was used on corvettes and F- bodies ..... I have no clue what the 9'' single diaphragm was used on.....Vega??????? guess
FWIW My car came to me with front disks and mixed up bunch of junk on the rear with the 12'' digging into the valve cover. With the rears as bad as the were I cant tell you just how the system worked...
Bill it's just a common E-bay not made in USA booster... I bought it back in 18 or 19... Just put it on recently. Motor was out of car for 18months then ran with a manual MC for about a year.. FWIW this one looks exactly like the one I have...https://www.ebay.com/itm/201601559454?hash=item2ef063ab9e:g:xIEAAOSwBkRZ821s.
That looks good for 75 dollars. Any modification necessary? Did your pedal push rod fit ok? And did your master cylinder go back onto the original location?
Any modification necessary?=== bolted on with the 15$ brackets in post 3..... Did your pedal push rod fit ok?===== I lost my rod and clevis so I bought new like the 24.23$ in post 3... only to find out the brackets didn't work.. then I bought the 15$ bracket.... And did your master cylinder go back onto the original location? Its not really in the same spot.. It looks a bit further from FW than stock, a Lot easier to put on than it was to remove old one... Angle looks more tilted.......MC bolted right on.. lines needed a bit of massaging... 1 hour job was done... not including bleeding.... you may not need to bleed... I put the old power brake MC back on.....
