axle swap to get rid of vacum pump
#1
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Year: 1994
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axle swap to get rid of vacum pump
Hi guys im new here and I just bought a 90 xj and of course the vacum pump for the four wheel drive does not work is there a way to get rid of it for some thing dependable with out changing the entire axle houseing. I also read some where that you could change the pasenger side axle to fix the problem but they did not list ant thing other than that so any info would be great thanks.
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Hi guys im new here and I just bought a 90 xj and of course the vacum pump for the four wheel drive does not work is there a way to get rid of it for some thing dependable with out changing the entire axle houseing. I also read some where that you could change the pasenger side axle to fix the problem but they did not list ant thing other than that so any info would be great thanks.
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#6
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You can replace the passenger side shaft with a shaft from ANY XJ, TJ, ZJ or MJ that has a none disconnect axle.
Than you make a steel cover for where the vacuum motor was and seal it with RTV. That simple and cheep..
Than you make a steel cover for where the vacuum motor was and seal it with RTV. That simple and cheep..
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Year: 1987
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Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
I did the homebrew cable locker on my 91 XJ like Dougy Fresh was showing. It really worked well for me. I really recommend just going with a 1 piece solid long side axle shaft out of a 95+ XJ. That completely does away with the need for the disco of any kind and it gives you a bigger stronger knuckle U-joint. I even have a locker in the front of my XJ and it's really pretty smooth on the road when in 2HI. With a stock open diff. I'm sure it would be even more smooth. With that axle in place you merely shift the lever into 4LO or 4HI and away you go.
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#9
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#10
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I did the homebrew cable locker on my 91 XJ like Dougy Fresh was showing. It really worked well for me. I really recommend just going with a 1 piece solid long side axle shaft out of a 95+ XJ. That completely does away with the need for the disco of any kind and it gives you a bigger stronger knuckle U-joint. I even have a locker in the front of my XJ and it's really pretty smooth on the road when in 2HI. With a stock open diff. I'm sure it would be even more smooth. With that axle in place you merely shift the lever into 4LO or 4HI and away you go.
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yeah, that vacuum-disconect was used until 1991 i believe. replacing with a axle shaft from a '92 or later passenger side with a block-off plate will eliminate the problem. Warn makes a kit that basically is two seals and a plate that replaces all the extra stuff hanging off the axle.
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you could also just go to the JY and get a complete axle with no vacuum disco, just make sure its the same gear ratios. and youll probably be able to pick it up wayyyy cheaper then the $200 cable option.
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