Phase II 4eat swaps?

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monkeyposeur
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Location: Salt Lake City, UT

Phase II 4eat swaps?

Post by monkeyposeur » Wed Oct 18, 2017 5:38 am

I am just researching more options for 4EAT swaps into my 93 SS. Currently the stock 4EAT works fine after swapping in an NA TCU, but since the 4EAT has about 180k I am looking for swap info in case I have to replace it.

I saw a post where bcmmaxx swapped in a 97 OB 4EAT.

What later (phase II) transmissions can I swap in, and what does it entail? I would imagine I would need to replace the wiring and TCU at the very least?

Has anyone swapped in an 02/03 WRX 4EAT? If so how did you go about it?

Another option I am exploring is swapping in a JDM VTD transmission from an EJ20g but I am having a hard time locating the the matching TCU to go with it.

Thanks!
93 SS - Wife's DD, Walbro 255, Boost gauge, POWER mode!, RobTune on the way!!!
03 WRX 22T/205 20GXT 350 whp
95 BK - Sold to my neighbor.

mike-tracy
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Re: Phase II 4eat swaps?

Post by mike-tracy » Wed Oct 18, 2017 3:41 pm

Phase 2 started in 99. I've read about several people running 2nd gen Legacy/phase 1 transmissions (95-98) in our cars.
1992 Legacy SS 5mt, build in progress
Josh Colombo wrote:
Mon Jan 14, 2002 10:23 am
Wait....I'm confused now.

monkeyposeur
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Re: Phase II 4eat swaps?

Post by monkeyposeur » Thu Oct 19, 2017 3:55 am

Ah, Ok. I assumed that phase II transmissions were in cars with phase II engines.

So are the 2nd gen phase I transmissions plug and play? Any idea what is involved to swap one in?

I'm still hoping to find a VTD JDM TCU or find out any info about swapping in a phase II transmission.

I just wish my wife would let me swap in a 5MT. It woud be a lot easier to source a tranny.
93 SS - Wife's DD, Walbro 255, Boost gauge, POWER mode!, RobTune on the way!!!
03 WRX 22T/205 20GXT 350 whp
95 BK - Sold to my neighbor.

wtdash
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Re: Phase II 4eat swaps?

Post by wtdash » Fri Dec 01, 2017 6:18 am

Getting stale and I think I answered this elsewhere, so ignore if ' a repeat'.
I assumed that phase II transmissions were in cars with phase II engines.
True. '99 was both engines and trans.

Tangent: The '99 Legacy OB/GT was a weird one w/a Phase 2 shortblock,Phase 1 DOHC heads and electronics and a Phase 2 4EAT. FWIW, a '95-'98 EJ22e/EJ25D will bolt up and work fine, but not the Phase 1 4EAT.

Many (on the USMB) have told of using the '90-'98 4EAT interchangeably - as long as it's w/another '90-'98. There are differences in final drive ratios, rear diff flange bolt pattern, drive line lengths, etc., depending on years and engines.

Td
Turbo Subies:
'87 GL-10 Turbo 4WD Wagon (pre-Loyale) - SOLD
'90 BJ, EJ22T/DOHC and 5-speed swap - SOLD
'04 FXT, Forged internals, VF39, STI TMIC, Cobb AP- SOLD
'93 Legacy SS - 5-speed, SOLD :-(
'02 WRX GG-SOLD
'96 BD - turbo'd-SOLD

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