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  #301  
Old February 28th, 2022, 10:56
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XJensen XJensen is offline
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Re: XJ axle swap/build

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Originally Posted by DocTremp View Post
Did some digging and WJ booster isnít compatible with the Durango/Dakota MCs. Need a 97-01 booster now.


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I think I tossed it but I might have one
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  #302  
Old February 28th, 2022, 17:37
89Mock 89Mock is offline
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XJ axle swap/build

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Originally Posted by DocTremp View Post
Did some digging and WJ booster isnít compatible with the Durango/Dakota MCs. Need a 97-01 booster now.


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I wish I knew what you were doing. I learned the hard way too. It needs to be 3 1/2Ē spacing for the studs to line up with the master cylinder. Have you checked a Dodge Ram 2500 from the 98-2000 year? Maybe a local parts store has one you can measure.
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  #303  
Old October 1st, 2022, 23:06
DocTremp DocTremp is offline
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XJ axle swap/build

So I ended up using the same MC as Nate, and it fit fine but the push rod in the booster (97-01) was too long and my pedal was bottoming out in the MC about 3 inches from the firewall. I now have a 96 booster which is supposed to be the correct one that works with 86-94 (I think) XJs. But on top of that I have not been able to get a good hard pedal. Bled it 3-4x in the correct pattern. Going to put this new booster in and bleed it again. Hopefully i can get it bled right this time.


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  #304  
Old October 3rd, 2022, 06:13
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Re: XJ axle swap/build

Being a 90 with a 95/96 booster, you will need to grind down a section of the rod for your brake switch to work. Or you can retrofit a later model switch and figure a way to have it hit the pedal. Otherwise your brake lights won't work.
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  #305  
Old October 3rd, 2022, 10:12
89Mock 89Mock is offline
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XJ axle swap/build

Sooo V8 durango master cylinder and brake booster off a 96 XJ with the pedal hella modified so it connects to the stock pedal?
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  #306  
Old October 4th, 2022, 20:17
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by Goose_XJ88 View Post
Being a 90 with a 95/96 booster, you will need to grind down a section of the rod for your brake switch to work. Or you can retrofit a later model switch and figure a way to have it hit the pedal. Otherwise your brake lights won't work.

Yes, thatís been done. I think itís the flasher or a ground. Found I have a lot of air in the system regardless of bleeding it a lot


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  #307  
Old October 4th, 2022, 20:18
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by 89Mock View Post
Sooo V8 durango master cylinder and brake booster off a 96 XJ with the pedal hella modified so it connects to the stock pedal?

I would say mildly modified.


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  #308  
Old October 6th, 2022, 10:35
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XJ axle swap/build

Gotcha. I have the WJ booster and (probably) the stock 89 master and the brakes are horrible on mine with a Dana 60 front. They were great with stock axles though. The Durango master wouldnít fit the booster so Iím now fishing for something different.
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  #309  
Old October 6th, 2022, 10:46
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Re: XJ axle swap/build

I have straight up manual brakes on the buggy, with Ford dual piston Dana 60 calipers up front and the typical 3/4 ton Chevy front calipers in the rear, and it’s pretty nice. Buggy though so I don’t really get past second gear in high range.
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  #310  
Old October 6th, 2022, 14:01
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by 89Mock View Post
Gotcha. I have the WJ booster and (probably) the stock 89 master and the brakes are horrible on mine with a Dana 60 front. They were great with stock axles though. The Durango master wouldnít fit the booster so Iím now fishing for something different.

Yeah. I had a similar set up with stock axles and it was awesome. Now I have a similar set up to Phil, and it giving me fits getting it bled. You might want to look into 96 booster. It fit well for me with the Durango mc.


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  #311  
Old October 6th, 2022, 14:13
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by Phil View Post
I have straight up manual brakes on the buggy, with Ford dual piston Dana 60 calipers up front and the typical 3/4 ton Chevy front calipers in the rear, and itís pretty nice. Buggy though so I donít really get past second gear in high range.

I have a similar set up but I have the el dorado calipers with the ebrake arm. What mc/booster are you running?


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  #312  
Old October 8th, 2022, 15:58
89Mock 89Mock is offline
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XJ axle swap/build

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Originally Posted by DocTremp View Post
Yeah. I had a similar set up with stock axles and it was awesome. Now I have a similar set up to Phil, and it giving me fits getting it bled. You might want to look into 96 booster. It fit well for me with the Durango mc.


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I found a 95 booster and discovered the Ram 1500 has the same master. So now I need to apparently adjust the booster rod length and install everything.
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  #313  
Old October 8th, 2022, 17:36
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Re: XJ axle swap/build

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Originally Posted by DocTremp View Post
I have a similar set up but I have the el dorado calipers with the ebrake arm. What mc/booster are you running?


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I have no brake booster. I have a CNC dual master cylinder. I donít have the size listed electronically, I think I must have ordered from Kartek over the phone, and will dig through my stack of receipts to see if it is there.
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  #314  
Old October 9th, 2022, 17:00
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by 89Mock View Post
I found a 95 booster and discovered the Ram 1500 has the same master. So now I need to apparently adjust the booster rod length and install everything.

I got the 96 and I didnít have to adjust the booster push rod.


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  #315  
Old October 9th, 2022, 17:00
DocTremp DocTremp is offline
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XJ axle swap/build

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Originally Posted by Phil View Post
I have no brake booster. I have a CNC dual master cylinder. I donít have the size listed electronically, I think I must have ordered from Kartek over the phone, and will dig through my stack of receipts to see if it is there.

Oh I got you. Thanks! That would be cool to look into.


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