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Discussion Starter #1
So like everyone has experienced my rear differential bushing is gushing, so I ordered a Z1 urethane replacement for the front and rear bushing, I did not order the bushing removal tool as it is more expensive than the bushing and it has mixed reviews. Is there anyone out there that thinks I should bite the bullet and get it or just cut the old one out and muscle the sleeve out? Thought?
 

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Discussion Starter #2
I guess I should mention that it is a 2004 350Z, has anyone noticed a trail of black under your differential bushing that is located in the middle of the rear subframe? I haven’t found any other threads about this issue so I’m just looking for some advice. Somebody has had to deal with this bushing being an upgrade or a repair.
 

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Tom- this isn't an easy DIY, but there are several threads on it if you search. I had a race shop change out the diff bearing on my Z racecar, but haven't done anything on my Z streetcar yet. I haven't seen a "trail of black" under either Zs diff on the floor. You may have another problem going on there.
 

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Discussion Starter #4
Tom- this isn't an easy DIY, but there are several threads on it if you search. I had a race shop change out the diff bearing on my Z racecar, but haven't done anything on my Z streetcar yet. I haven't seen a "trail of black" under either Zs diff on the floor. You may have another problem going on there.
It was actually the rear differential bushing, the trail of black doesn’t hit the floor it just stains under the bushing in the rear sub frame, the liquid filled bushing. Was able to remove it with an air hammer, the 2 front bushing of the differential came out easier, the urethane bushing went in easy. The tool Z1 sells may make it easier to remove if you are working on the ground, but if you have a lift and air tools then it sucks less. I don’t have a diff bearing issue.

Also making it easier was to remove the passenger rear section of my exhaust, just 1 V clamp, it’s a Motordyne shockwave, allowing the space needed.

Thanks for responding to my post, I was on vacation and couldn’t respond sooner.
 

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You're welcome and good for ya, that you were able to handle this project. It sure seems that the rear diff projects are easier on a lift, rather than having just jack stands and lots of crawling to get 'er done.
 
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