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Old 10-23-2020, 05:50 PM   #1
EastPhilly
Scooby Newbie
 
Member#: 491030
Join Date: Sep 2018
Default Getting transmission rebuilt. What else should I replace?

Hey all, this will be about my 2007 WRX Wagon w/ 126k miles.

I changed my trans fluid and noticed a lot of metal shavings on the magnetic plug. I had forgotten to change the crush washer thing, so it was leaking a bit. I bought a new plug and washer and quickly swapped them out a few weeks later. After those few weeks there was still a lot of metal shavings.

Three weeks ago I started hearing a loud clunk going from first to second and second to third. Nothing happened after I got in gear. No weird noises, shuttering, slipping, grindimgy, coming out of gear. No noise or clunk on downshifts. But the clunk was violent enough that it sounded like something was rattling during the shift. And coasting soundedba lot louder than usual.

I checked my trans fluid and realized it was pretty low, so I filled it back to full. Right away I saw a lot of fluid on the cardboard box I put under my car to see if things are leaking. Problem is I couldn't find anything that was leaking fast enough to have that much trans fluid be there.

So I called up RalliSpec and they are going to rebuild my trans. I figure it'll be worth the extra couple hundred to rebuild over swapping in a used trans (local costs are about $1300 after labor for a trans with 94k miles). I figure while it's out and getting rebuilt I would get a few other things added in, like the PDM snout kit. Is there anything else people would recommend to get done as well? They sell Group N trans and engine mount sets for a good price. I figure at this cars age I might as well get that done while it's easy to do.

I talked to their guy about doing a blast plate/trans brace. He said he'll install it, but the manufacturers tend to call for higher torque values on their bolts and he's seen a lot of bearings get compressed and messed up, so they only do to factory torque for that.

Anything else?
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Old 10-23-2020, 06:51 PM   #2
snow_bound26
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Member#: 395793
Join Date: Jul 2014
Chapter/Region: Tri-State
Vehicle:
2005 92x Aero
Blue(retired�ȸ

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Blast plates aren't worth it. They don't really help anything with these trans. Just get every driveline bushing from TiC and Kartboy plus the Group N trans and motor mounts. That will firm everything up and make shifting more precise. I personally use a weighted shift knob as well. Some people like them. Some don't. But they do help smooth the action of the shifter itself.
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Old 10-23-2020, 07:30 PM   #3
EastPhilly
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Member#: 491030
Join Date: Sep 2018
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Quote:
Originally Posted by snow_bound26 View Post
Blast plates aren't worth it. They don't really help anything with these trans. Just get every driveline bushing from TiC and Kartboy plus the Group N trans and motor mounts.
I'll look into the bushings.

Another thing they offer is "Super Finishing". It's pretty much ceramic tumbling all the internals so they are super smooth and free from most manufacturing defects. Supposed to prolong life (no uneven wear from the friction) and keep the fluids cooler (less friction/less heat) so that everything runs smoother for longer. Think that would be worth it as well?
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