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Old 03-06-2013, 07:12 PM   #1
mopar3.0
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Default Shifter linkage bearings ,my experiment

Measured the busings from my sti and found these bearings on e bay.
At a cost of 8 dollars i wanted to try some cheap ones before sourcing out some quality pieces,

The shifter its self will have to be drilled out to fit the beaings, it appears to be about 1mm too small.

Any one every try anything like this?,debating on maby adding some grease nipples to the housing too.
car is still in pieces and snow is still on the ground so won't be any testing for couple months.
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Last edited by mopar3.0; 03-06-2013 at 07:19 PM.
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Old 03-06-2013, 07:25 PM   #2
AR-45ACP
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Bearings are always better than bushings in almost every application that I know of so I would say you are on to something!

Last edited by AR-45ACP; 04-14-2013 at 07:34 AM. Reason: Almost forgot! :)
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Old 03-06-2013, 07:59 PM   #3
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I don't think bearings are a good idea. You need some side to side give so nothing binds up, stiffer bushing from mc master would be better.
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Old 03-06-2013, 08:06 PM   #4
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the small amount of movement there may not be enough to make much difference

but it might

and grease nipples would be a waste of time if the grease used initially was of good quality
there is no need to regrease that application, i should think....and sealed bearings wouldnt ever require it anyway

what bearings, exactly, are those???
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Old 03-06-2013, 08:13 PM   #5
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http://www.ebay.com/itm/10pcs-F698zz...item2321602fcd

I have yet to see to see if they make the assambley any thicker,causing it not to fit in the "fork" will do this week,
They are very cheap if they last 2 summers i would be dam happy
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Old 03-07-2013, 08:50 AM   #6
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Quote:
Originally Posted by mopar3.0 View Post
http://www.ebay.com/itm/10pcs-F698zz...item2321602fcd

I have yet to see to see if they make the assambley any thicker,causing it not to fit in the "fork" will do this week,
They are very cheap if they last 2 summers i would be dam happy

here is a site that has a bunch of bearings

http://www.vxb.com/ballbearings.html...Fad_QgodmXQA1w

which dimention is not quite right on the ones ya got off ebay

Last edited by Uncle Scotty; 03-07-2013 at 08:57 AM.
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Old 03-08-2013, 06:19 AM   #7
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they do fit, needs small washers on both side on out side, gona use copper crush washers ,

if not the fork will bind up on the out side part of the bearing when you thighten it down

Im also thinking about a spacer between the 2 bearings so you dont side load the bearings when you also tighten it down
(just trim the sleve from the old bushing set up)
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Old 03-10-2013, 03:46 AM   #8
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Quote:
Originally Posted by mopar3.0 View Post
they do fit, needs small washers on both side on out side, gona use copper crush washers ,

if not the fork will bind up on the out side part of the bearing when you thighten it down

Im also thinking about a spacer between the 2 bearings so you dont side load the bearings when you also tighten it down
(just trim the sleve from the old bushing set up)
keep us posted on this and what ya do to make it work
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Old 03-10-2013, 02:00 PM   #9
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I was going to take mine apart this summer to see if I could change something and this looks like it would save me some trial and error.

Definitely keep us posted as to your findings.

Do you have any other shifter/shifter bushing upgrades?
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Old 03-31-2013, 12:29 AM   #10
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You may well need to make a spacer tube to go inside between the two bearings inner races,.. otherwise the clamping load of the bolt will be putting a tremendous side-thrust on the bearings.

The spacer would need to have washers welded on either end to keep it centered so you can get the bolt started.

Much the same as how motorcycle wheel bearings work. They have a spacer tube inside them.
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Old 04-07-2013, 09:49 PM   #11
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Just finished and installed it today. and yes i cut the old tubes that were in the original bushings,
i also had to use thin washers on the bolts inside the u brackets so the bracket would not bind up the outside of the bearing.

The shifter feels great,like its its part of the gear box like a mustang or 240
also added about 1/2-3/4 of a inch to the bottom on shifter , Its now about 3.5 inches between each gear!

Last edited by mopar3.0; 04-09-2014 at 09:33 PM.
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Old 04-07-2013, 10:08 PM   #12
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Quote:
Originally Posted by DuckStu View Post
You may well need to make a spacer tube to go inside between the two bearings inner races,.. otherwise the clamping load of the bolt will be putting a tremendous side-thrust on the bearings.

The spacer would need to have washers welded on either end to keep it centered so you can get the bolt started.

Much the same as how motorcycle wheel bearings work. They have a spacer tube inside them.
yeah....the torque value for that bolt is like 8ft-lbs...not much but still....
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Old 04-07-2013, 10:10 PM   #13
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Quote:
Originally Posted by mopar3.0 View Post
Just finished and installed it today. and yes i cut the old tubes that were in the original bushings,
i also had to use thin washers on the bolts inside the u brackets so the bracket would not bind up the outside of the bearing.

The shifter feels great,like its its park of the gear box like a mustang or 240
also added about 1/2-3/4 of a inch to the bottom on shifter , Its now about 3.5 inches between each gear!



d0000000000000000000d....i hate to ask but......

take it all apart and take pics and post them......otherwise, nobody will want to attempt this....well...i will, but....
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Old 04-08-2013, 06:16 AM   #14
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lol its pretty easy.
you need a 7/8 drill bit to drill out the bore In the shifter, I am in a rush to get my car in one piece as summer is coming, so no pictures . Hoping u will try it and do a proper write up

Last edited by mopar3.0; 04-08-2013 at 07:40 AM.
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Old 04-08-2013, 05:07 PM   #15
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What other modifications have you done to your shift linkage? I'm just curious to how it compares to other modifications that have been done.
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Old 04-08-2013, 05:21 PM   #16
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Quote:
Originally Posted by AR-45ACP View Post
Bearings are always better than bushings in every application that I know of so I would say you are on to something!
Better in every application? What about cost? I'm sure bushings were cheaper than bearings for Subaru to spec, manufacture and install.

Also, what about poor weather and salt-spray testing? Even sealed bearings have a hard time resisting salt spray. Bushings, however, don't have near as much trouble. You'll rarely find a seized bushing, but bearing seize all the time for a variety of reasons.

And then there is NVH (noise/vibration/harshness). Most people do not want to feel the intimate inner workings of their transmission when they shift. They also don't want to hear it. Bushings help to isolate some of the harsher frequencies from the driver and cabin. Again, this is most likely why Subaru spec'd bushings in this application.

I agree, I would love to see bearings in this particular application, but to make a blanket statement that they are better in every application without considering design goals/constraints is silly.
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