brake booster upgrade
Thread Starter
Seasoned Member
Joined: Aug 2009
Posts: 460
Likes: 2
From: Long Island NY
Year: 1989
Model: Cherokee
Engine: 4.0
brake booster upgrade
I have a 1989 Cherokee limited. Non ABS. my brake booster went bad is there a upgrade or better booster I should get or just order a stock booster.
CF Veteran
Joined: Jan 2015
Posts: 1,381
Likes: 3
From: Southern Maryland
Year: 1991
Model: Cherokee
Engine: 1999 4.0L
95-96 have a bigger booster drum and are basically a bolt-on upgrade. 97 and later are setup different. WJ booster can also work but is not as direct.
Thread Starter
Seasoned Member
Joined: Aug 2009
Posts: 460
Likes: 2
From: Long Island NY
Year: 1989
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: Mar 2010
Posts: 47,923
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From: Broward County Fl.
Year: 1989 xj sport 2dr
Model: Cherokee
Engine: 12 hole bosch Injectors
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Joined: Aug 2011
Posts: 43,971
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From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I've done both. Neither is a "bolt in". But, it's pretty easy depending upon your skillset.
WJ versus 95 to 96 XJ booster
Actually, the WJ booster is in some ways easier than the 95 to 96 XJ.
I've done both.
XJ, you don't have to mess with the firewall. No big deal anyway.
But, you have to move the washer reservoir. And, once the original booster comes out, the bracket inside the cab moves and makes it a bear to install the new booster.
WJ you have to bend or cut the firewall lip, but don't move the washer bottle.
As an added bonus, the mounting studs of the WJ booster are a bit smaller and it's easier to get in.
Another bonus with the WJ is that it has FLEXIBLE lines from the master cylinder that make putting things together MUCH easier.
And, WJ boosters are newer and easier to find…..
WJ versus 95 to 96 XJ booster
Actually, the WJ booster is in some ways easier than the 95 to 96 XJ.
I've done both.
XJ, you don't have to mess with the firewall. No big deal anyway.
But, you have to move the washer reservoir. And, once the original booster comes out, the bracket inside the cab moves and makes it a bear to install the new booster.
WJ you have to bend or cut the firewall lip, but don't move the washer bottle.
As an added bonus, the mounting studs of the WJ booster are a bit smaller and it's easier to get in.
Another bonus with the WJ is that it has FLEXIBLE lines from the master cylinder that make putting things together MUCH easier.
And, WJ boosters are newer and easier to find…..
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