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EA81 vs EA82 struts


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10 replies to this topic

#1 Numbchux

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Posted 31 October 2012 - 02:09 PM

Can an EA82 front strut fit in an EA81 knuckle? Vice Versa?


I was looking up front struts at work today, and noticed that the EA81 fronts have a substantially shorter stroke than EA82. My Brat front struts are junk, but I have some decent used EA82 ones here.....

#2 obk25xt

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Posted 31 October 2012 - 08:45 PM

Pretty sure ea82 struts are a larger diameter where they need to fit into the knuckle....

I think they will fit but you have to open up the hole some....

#3 bratman18

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Posted 02 November 2012 - 09:03 AM

I swapped ea82 adjustable struts into my BRAT a few years ago, top hats and all, had to drill new holes up top, but they swapped right in other than that.

#4 Gloyale

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Posted 05 November 2012 - 11:13 AM

Pretty sure ea82 struts are a larger diameter where they need to fit into the knuckle....
.


Not they are the same.

They fit the knuckles the same.

mounting to the tophat is a bit different....I think you the EA81 has a nothced hole, while the EA82 has a round hole.

#5 Rally_Blue

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Posted 14 November 2012 - 07:06 PM

I have a set of both knuckles.


Comparing the two, the EA81 struts will not fit the EA82 knuckles, they kinda do but the diameter of the strut is slightly smaller than the hole so I would not feel comfortable using the EA81 struts on a EA82 knuckle.

As far as using a EA82 strut, I feel it would be a little tight but fit fine.

#6 bratman18

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Posted 14 November 2012 - 07:21 PM

They are the same. If they look different, it's because the pinch joint is spread part more on one set more than than the other.

#7 capn_r

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Posted 14 November 2012 - 07:36 PM

I have a set of both knuckles.


Comparing the two, the EA81 struts will not fit the EA82 knuckles, they kinda do but the diameter of the strut is slightly smaller than the hole so I would not feel comfortable using the EA81 struts on a EA82 knuckle.

As far as using a EA82 strut, I feel it would be a little tight but fit fine.


Does this mean that the EA81 car that I have been using EA82 knuckles on for that last few years is something I should be concerned about? The difference that I found was the angle where the strut attached (affected the camber) and the inner seal diameter on the axle.

#8 Gloyale

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Posted 15 November 2012 - 12:26 PM

Does this mean that the EA81 car that I have been using EA82 knuckles on for that last few years is something I should be concerned about? The difference that I found was the angle where the strut attached (affected the camber) and the inner seal diameter on the axle.


No. your fine.

Like mentioned above, they are the same.....but individual knuckles, in a "free" state can have varying diameters.

But they are indeed the same.

#9 torxxx

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Posted 16 November 2012 - 07:02 PM

and thats what the pinch bolt is for. If you look at the gap on the back top side of the knuckle (where the strut inserts into) Theres a fairly decent size gap where the pinch bolt tightens.

If you've been running them and you have not popped a strut out of the knuckle, I doubt you are gonna have any issues in the future

#10 kirzick

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Posted 07 November 2013 - 03:59 PM

Any info about re drilling the holes? i only have ea 82 struts available to replace my ea 81.



#11 Uberoo

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Posted 08 November 2013 - 10:19 PM

Just modify the EA81 tops hats to go on the EA82 struts,takes 5 minutes with a dremel.






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