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2G GSX rear knuckle upper bushing

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dizily555

Proven Member
112
3
May 30, 2013
North Mankato, Minnesota
I'm building my GSX for auto cross so I'm replacing all the ball joints and bushings, I am having an issue finding the top bushing on the knuckle/spindle. I can't seem to even find if anyone has replaced them but being mine is a 95 and wasn't drove the last 3 years of its life this bushing is cracked bad. To me it looks like it could possibly be pressed out and a new bushing could be pressed back in. I'm wondering if anyone has found these bushings or got the old out and used something that worked. Here are some pictures so everyone knows what I'm talking about. Otherwise I'm going to have to buy the OEM spindle which is $180.38 a piece! I'm talking about above #5 in the diagram. Thanks in advance, hoping for good news.
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I actually just did this a few weeks ago .. I got the complete energy suspension kit but if you just get their rear kit ( 5.3119 ) the ones you are talking about are included. In the kit I mentioned it includes all the bushings/sleeves for the rear knuckles and they are actually all the same part number ( 8165 + 15.10.155.39 )[DOUBLEPOST=1409713167][/DOUBLEPOST]I should have mentioned the part number for the whole car is 5.18107 ... that's what I bought.
 
I actually just did this a few weeks ago .. I got the complete energy suspension kit but if you just get their rear kit ( 5.3119 ) the ones you are talking about are included. In the kit I mentioned it includes all the bushings/sleeves for the rear knuckles and they are actually all the same part number ( 8165 + 15.10.155.39 )[DOUBLEPOST=1409713167][/DOUBLEPOST]I should have mentioned the part number for the whole car is 5.18107 ... that's what I bought.

I looked at your post but apparently not close enough! But while I was looking I was immediately worried about the quality of everything, is it close to OEM? I've never heard of the company before and ebay with it scares me. But thanks for the quick reply![DOUBLEPOST=1409714572][/DOUBLEPOST]
I looked at your post but apparently not close enough! But while I was looking I was immediately worried about the quality of everything, is it close to OEM? I've never heard of the company before and ebay with it scares me. But thanks for the quick reply!

I take that back, I did more digging and they look very very nice, thanks I'll be ordering them right away! Was it a pain to get that top bushing out or easy with a press? What issues did you have if any?
 
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This is a very popular company and their parts are used on many many race cars and street cars. Check out their website and see for yourself ... http://energysuspension.com/. Quality / fitment was excellent and since they are basically a solid bushing you shouldn't have any further issues. I bought the kit off amazon because I had points on there so I basically got it for free but I'm sure vendors also carry it??
 
Yeah I found it on their dealer site, but this is a bit off topic but I work at Orielly's so I sell ball joints and control arms that ball joints need to be pressed in. Moog of course makes them but have you seen anyone that makes at least the lower control arms where the ball joints can be replaced?
Again thanks for replying, I looked past the brand and would have went a complete different direction!
 
The bushings can be pressed out, which is a pain, or you can burn the rubber out and use a hacksaw to cut the bushing out of the knuckle. That's what I had to do when replacing my old bushings with the prothane kit.
 
Yea a ball joint is completely different from a bushing and may require complete arm replacement. The bushings in question can simply be pressed out and the new bushing pressed in. I just did this and although it was a PITA I was able to get both knuckles completely refurbished in under 2 hours using a press and a long bolt / nuts to pull the new bushings in.
 
I think I'm going to be going with the energy suspension bushings rather than the more expensive prothane's. Thanks @greengoblin for bringing them up but I think I'd rather have the hassle of pressing in the energy bushings rather than paying double to have a bit of work. Thanks for the replies!
 
I also have the prothane ones and they are worth it in my opinion.

OP you said you were building this car for autocross so it will take more abuse than a street/dd type car.

When I was researching prothane vs energy the consensus I found was prothane was more recommended for racing since they are harder and will last longer under more abusive situations.

Just my 2 cents.
 
I know I'm late to the party but since I've ran both ES & Prothane, thought I'd give my input. I started with ES, they worked fine except the top rear knuckle bushing, that the OP is asking about. Those failed on my car after one summers use. I replaced those specific bushings with Prothane & didn't have any further issues.

Last winter I upgraded all my bushings to Prothane for a couple reasons. First they offered a couple more bushings on the rear that ES doesn't & I had read in the past that they might be a bit firmer, which I liked the idea of, since I lap the car now. The Prothanes are a firmer bushing but I didn't notice much difference actually daily driving the car.

While I never had issues installing the ES bushing originally (used arbor press), have to say, now that I've removed them, I'd recommend the Prothanes. Urethane bushings need to be greased to be squeak free & over time will need to be re-greased (mine were due after 4-5 summers, so I figured if I had to pull them anyway, might as well upgrade). I destroyed all the one piece ES bushing on removal, so I'd say they are a one time use bushing. So while the Prothane kit does cost more (though it does include more bushings), it should be able to be pulled, greased & re-used, while the ES can't. So in the long run, it should be a better buy. Plus I like the fact that their bushings have a larger "shoulder" area vs the ES bushings,
 
Thanks for the input guys, I already installed the ES bushings and have the rear suspension installed but am still working on the motor. I guess I'll end up learning the same lesson as you guys which I'm fine with. I appreciate the heads up! However I am curious if you had any issues getting the Prothane's back out, or anything you made sure to do so they would come out with ease. I know the two pieces design makes installation and removal easier but curious if any issues were encountered.

Thanks again!
 
No, the Prothane's come out easy. You can pull them out by hand. Worst case scenario you might need to pry them a bit with a flat head screwdriver.

Likewise you don't need a press to install them. You can press them in by hand.
 
IMO along with daron is prothanes are worth the extra money for a couple reasons. The ease of install and it is a complete kit that includes the bushings for the lower control arms.
 
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