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Old 13-05-2017, 03:02 PM   #1
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Join Date: May 2017
Location: Sydney, NSW
Car: 2002 323 Protege SP20
Posts: 8
Question 2002 SP20 Gearbox Swap

Hi all,

Firstly, I'd just like to say thanks for letting me join!

Secondly, I'd just like to say, to do with my question, I've been looking through existing posts on here for the better part of two hours (just today) and I can't find an answer to this question anywhere, not even on google. If this is just my lacking searching ability then I would very much appreciate if someone could link me to the correct post.

I hope this is in the right section.

Okay, so,

I have a 2002 323 Protege SP20 and everything seems to be working great, except the gearbox. It appears to have the somewhat common issue (and I say this because I know a few people who've had the same issue in their SP20s) of third gear deciding that it doesn't want to work anymore. I bought the car knowing this and have not tried it myself, though I was told by the previous owner that when he tried to put the car into third it either wouldn't go in or if he forced it in it would crunch itself out into neutral.

The old car I had, which has since been scrapped as it was in horrible condition, was a 2001 Ford Laser SR2 (KQ). The gearbox from that worked fine and I pulled it out before scrapping the car. Both cars are a 5-speed manual 2.0L.

The question is; Will the gearbox from the Ford fit straight into the Mazda?

If so, awesome! If not, does anyone happen to know what gearbox would fit that I could swap into it, or if the original gearbox is fixable?

Cheers everyone!
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Old 13-05-2017, 04:15 PM   #2
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Join Date: Nov 2015
Location: Australia
Car: BJII SP20 Astina 5spd
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Yes it will. KQ SR2 and the BJII SP20 have exactly the same driveline. The KQ SR2 is a SP20 with different front and rear body panels.
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Old 15-05-2017, 02:07 PM   #3
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What the above poster said. Perfect match to swap.
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Old 15-05-2017, 02:12 PM   #4
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Car: 2002 323 Protege SP20
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That is great news to hear, takes a lot of stress off my shoulders haha

Thanks so much for the responses guys!

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Old 17-05-2017, 10:24 AM   #5
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Location: wollongong
Car: 99, BJ 323 astina hatch
Posts: 1,506
Just make sure you get the gearbox frommthe SP or SR2, being the 2lt FS engine.

The 1.8l (FP) engine gearbox also bolts up. But the diff is different so the drive sharfts will not work,

The 2lt gearbox is called a G-series gearbox.

Hope this helps.

Also what are you doing with the old gearbox ?
Cars .. 1: 241kw Turbo 1999 BJ 323 Astina . 2: 1983 ke70 Corolla.
3: 2011 PK Ranger Wildtrak (tow car )

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Old 18-05-2017, 02:01 PM   #6
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Join Date: May 2017
Location: Sydney, NSW
Car: 2002 323 Protege SP20
Posts: 8
Yeah, the gearbox came from a 2.0L SR2 so hopefully all goes well.

At this stage, the gearbox is still in the car, so until I've done the swap and everything runs fine I'm going to hang on to it.

Might also have a look at the busted one once I've pulled it out to see if it's fixable. If it's an easy fix I'll probably hang on to it as a spare but if not I can post back here to let you know, if you're interested?
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gearbox, sp20, swap

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