best mastercylinder for 48 flatty -
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Unread 06-24-2008, 06:42 PM   #1
Registered User
1999 XJ Cherokee 
Join Date: Aug 2007
Location: michigan
Posts: 110
best mastercylinder for 48 flatty

mine's not stock, so not worried about staying stock appearing..v-6, cage, 2.5 transfer ect....had stock style on it for 20 years, but time for a new one,,,and it leaked thru the rear were the rod pushes in after the 1st summer of wheelin...and i got really sick of having to fight to get the damn top off to top it, ease of install ect appericated...thanks mark

99 cherokee sport
5" lift with 32x11.50x15 cooper xtx at's
unknown free rims with 4" backspace
factory/drawtite hitch outback

48 cj2a willys 231 oddfire v-6
2.5-1 transfer w/t150 trans
custom rollcage-ramsey 8000lb winch
custom built(by me!)body armour
custom built(u geussed it!) nerf bars
firebird tilt steering w/gm 1/2 ton truck power steering out front fabbed in by me
4" lift
currently 31x10.50 15s.....set up for 35's
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Unread 06-24-2008, 07:49 PM   #2
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1974 DJ 
Join Date: Jun 2008
Location: Boise
Posts: 138
The PO of my 46 cj2a put in a master cylinder and booster from an 84 subaru GL wagon. According to him it works great though I have been having some issues with it :/. A popular swap seems to be the YJ master cylinder and booster but I'm not sure it that would fit a in flat fender as they are usually swapped into CJ5s.
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Unread 06-24-2008, 08:02 PM   #3
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1948 CJ2A 
Join Date: Sep 2007
Location: central MN, Minnesota
Posts: 380
I have a booster from a Monza(same as Vega I think). Master cyl for a late 70's early 80's GM truck. I think the pedal was from the Monza but not sure.

The Monza booster has a small diameter so it fits nice with a V8 under the hood. Also since I have brakes(disk/drum) equal to a 1/2 ton truck I picked a master cyl from that size of truck.
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