9" or 10" Brakes?

R

randyf

NAXJA Forum User

Location

Indianapolis

• Jan 7, 2009

• #1

I have to change my passenger rear wheel cylinder and need to find out my XJ has 9" or 10" brakes. Is there a way to tell without taking everything apart, like from the VIN, ect?

 

J

jeepdeez

NAXJA Forum User

Location

Woodbridge, Va

• Jan 7, 2009

• #2

good question....I need to know the same.

 

J

jeepster_259

NAXJA Forum User

Location

West Palm Beach, FL

• Jan 7, 2009

• #3

I just guessed on mine. I have a 98 Classic...Turned out to be 9"

 

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wim hoppenbrouwers

NAXJA Forum User

Location

Netherlands europe

• Jan 7, 2009

• #4

Right in '90 they changed the Dana 35 drums. 10"into 9". :shocked:

'92 XJ

 

R

randyf

NAXJA Forum User

Location

Indianapolis

• Jan 7, 2009

• #5

I have the Chrysler 8.25 rear.

 

J

jelrod

NAXJA Forum User

Location

Elon NC

• Jan 7, 2009

• #6

From what I have read on hear if your brake line going into the wheel cylinder is going in at 90 degrees it's a 9". If the line goes in at a 45 degree you have 10". You can tell this without even removing the wheel and tire.

 

J

jelrod

NAXJA Forum User

Location

Elon NC

• Jan 7, 2009

• #7

I asked the same question.
http://www.naxja.org/forum/showthread.php?t=977409

 

M

MTBracer367

NAXJA Forum User

Location

northeast pa.

• Jan 7, 2009

• #8

to my understanding this is how it goes

84-90 10" all axle's

90-01 10" for cryco8.25 and 9" for dana 35

my 98 with an 8.25 rear has 10" drums

my friends 96 with an 8.25 had 10" too

that information is from a haynes manual personal experience and here, naxja


-Dylan

 

J

jelrod

NAXJA Forum User

Location

Elon NC

• Jan 7, 2009

• #9

MTBracer367 said:

to my understanding this is how it goes

84-90 10" all axle's

90-01 10" for cryco8.25 and 9" for dana 35

my 98 with an 8.25 rear has 10" drums

my friends 96 with an 8.25 had 10" too

that information is from a haynes manual personal experience and here, naxja


-Dylan

Click to expand...

I just put my old drums off of my old 93' 8.25 on to my new 97' 8.25.

 

N

nick86

NAXJA Forum User

Location

iowa

• Jan 7, 2009

• #10

8.25 can have either 9inch or 10 inch, depending on how it was spec'ed out. Best thing to do is measure before buying shoes.

 

JCS JP

NAXJA Forum User

Location

Miramar

• Jan 7, 2009

• #11

Thanks this helps me out too.

 

ocean_jet

NAXJA Forum User

Location

San Diego

• Jan 7, 2009

• #12

silent_bob said:

Best thing to do is measure before buying shoes.

Click to expand...

It would take about 5 minutes to pull the wheel and drum... but other than that, could you climb under and measure the backing plate?

 

JCS JP

NAXJA Forum User

Location

Miramar

• Mar 6, 2009

• #13

Here is the difference in the sizes. Just so you know that the 10" are the used. The 9" are brand new. I was told when you buy shoes you should get the ones that are not glued together. Like the 9" are. You should get the ones that riveted together. Like the 10" are. Look at the holes. When offroading and using them often the glue could come apart with the heat. The brakes won't cool down at slow speeds like it should.