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Old 12-28-2022, 11:24 AM   #1
Punapple
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Member#: 421229
Join Date: May 2015
Default 6 speed swap issues

05 WRX
04 6speed swap
Everything went in as mentioned (thanks guys for all your descriptions) Car shifts through all the gears eng off
Starts right up clutch in engine goes through all gears. As I release clutch it slowly creeps only on flat surface. No power. I can also put in any gear without engine stalling. When up in air only front tires spin. Also in any gear I can roll the car by pushing with some drag. Can anyone help me?
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Old 01-03-2023, 08:17 PM   #2
RyanAutry
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Clutch plate may be backwards
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Old 01-24-2023, 01:10 AM   #3
Punapple
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So I found out my rear axles don’t fit my diff. It sat in there but never engaged the splines. 05 wrx stock axles. Looks like the diff is 27 spline. Is that common?
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Old 01-25-2023, 03:19 PM   #4
FuJi K
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So what did you do for the rear end?
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Old 01-25-2023, 04:41 PM   #5
AceKingNYC
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06 GGB 6sp Wagon
WRB

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Quote:
Originally Posted by Punapple View Post
So I found out my rear axles don't fit my diff. It sat in there but never engaged the splines. 05 wrx stock axles. Looks like the diff is 27 spline. Is that common?
If you swapped in an r180, i believe you cannot use your wrx axles - you'd need either hybrid axles, or get sti rear axles (which means you'd also need rear sti hubs).

That's assuming you ditched the r160 - if you didn't then i don't see why the axles wouldn't fit since that's what was on the car originally.

When i 6 speed swapped my 06 wagon, i put in an r180 and got V7 STI hubs for the rear. No issues.
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Old 01-25-2023, 04:46 PM   #6
murrdogg24
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like the person above said the axles need to match the diff and the hubs
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Old 01-25-2023, 07:03 PM   #7
FuJi K
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MY99 GF4 JDM 6spd
NF Performance

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Your WRX axles are made for R160 diff. The spine won't engage R180 STI diff. Seems you missed understood rear end parts compatability. Keep your knuckles and buy DDS hybrid axles. Swap STI knuckles and use sti brake so or rotor made for baby Subaru 2 pot calipers.
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