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View Full Version : info on swapping GT/ regular legacy struts into outback



XBW
01-19-2011, 01:01 AM
Maybe this is common knowledge but why not add my personal experience and fresh pictures.
Peer advise encouraged!

I made this picture to explain how simple it is to figure out your max wheel size when choosing struts.
https://sl-i.net/FORUM/images/imported/2011/01/strutsizing-1.jpg
the formula is XX x 2 = your max wheel size (wheel and tire)
Example: XX= 12 so 12 x 2 = 24 meaning you could run 18in wheels with a total of 6 inches of rubber. follow?
This is for choosing struts only, dont forget to make sure you clear the fenders if youre not rolling them. Now offset and wheel width has a huge role to play with how deep the wheel is in towards the strut or how far out past the fenders. But remember this is just a foundational guide on struts, this should help those who want a little drop but use stock wheels/ size.

Ok so lots of different struts from different models bolt up to each other meaning you can easily lift or lower your car without having to buy expensive parts, aren't Subarus cool?

I bought all four corner struts for the regular legacy/ GT to lower my outback a little. The fronts fit fine but the rear struts are way to short and come into contact with my tire, i do have big tires though 215/70 on 15's. So i could get smaller tires and be happy, but i like my big tires so i will need to figure something else out for the rears.
So I can factually tell you that with GT struts in the front a 27in total wheel size is the biggest you can fit without rubbing the strut with stock offset and the problem would be worse with more postive offset. This is regardless of model because body spacers dont matter here. But 27in wont fit in the back, just from what i went through yesterday I would guess that 24in is the biggest you can go in the back.
this is the size of a GT strut from the center of the upper mounting bolt to the bottom of the spring perch
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1353-1.jpg
its about 24.5 cm
here are the fronts side by side, outback on top GT/ regular legacy on bottom
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1372-1.jpg

XBW
01-19-2011, 01:01 AM
Here are the rears side by side, again outback on top, new KYB GR2 struts for regular legacy/ GT on bottom
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1364-1.jpg
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1363-1.jpg

the difference doesnt seem to be much between fronts and rears but the reason the rears are so far off is because the mounting plate that holds on to the spindle is lower compared to the center of the wheel, in the following pics you can see the top bolt on the front strut is way above the top of the brake rotor, whilst the rear bolt is way under the top of the rotor (where the rotor would be anyway)
front
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1346-1.jpg
rear
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1365-1.jpg

rougeben83
01-19-2011, 09:31 AM
stock tire diameter is 25in. Are you doing this with the springs on? Sedan and wagon springs in the rear have diff rates, you'll get sag if you use sedan springs on a wagon. You can also use WRX wagon suspension to get a little lift as those models are heavier than the equivalent BD/BG so the drop isn't as harsh.

XBW
01-21-2011, 01:56 AM
wth? i know i replied to this yesterday..
im running stock springs, but springs dont affect the (XX) measurement.

XBW
01-22-2011, 02:59 AM
heres a quick vid i did just for fun - http://www.youtube.com/watch?v=PKDQanpE5xg

i used some interesting 3M electricians tape (not electrical tape) which is about a mil. thick and uses heat to stick to itself
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1381-1.jpg
and just for fun, 250cc, if it doesnt do wheelies in 5th, what good is it?
https://sl-i.net/FORUM/images/imported/2011/01/IMG_1377-1.jpg

XBW
01-22-2011, 03:03 AM
ok, heres some facts ive gathered;
forester struts on a regular legacy will lift it a lot
outback struts on a regular legacy will lift it at least an inch
impreza and or? wrx struts will lift a regular legacy a little bit

so i think i'll take a look at impreza wagon and OB sport struts