Subaru Justy Gear Swap?
 

Hello all I am looking for information on gear swaps for a 90 Subaru Justy.

What I have found so far is that the 87-88 transmission will bolt in and give me a bit better gearing but it still not all that great.

I also found this site on using a second gear in the place of a fifth to bring the ratios even lower. Modifying Gears for Taller Overdrive

though I don't have a friend with a shop anymore so I'm not sure that's an option at this point.


Any one know of options for Gear Swaps for Subaru Justy's?

some information on the justy is on this Wikipedia page:

Subaru Justy - Wikipedia, the free encyclopedia

using those numbers with the stock tire size puts 60mph at about 3600 rpm with the second gen transmission and 3400 with the first gen transmission

( Subaru Justy Forum - Manual Gearbox Teardown/Interchange )
the place that pointed me to the site on using the second gear as a replacement 5th noted a drop from .675 to .590 which would get me to about 3150rpm at 60mph.

I would love to get that number down by another 500rpm at least. My plan is to go all out with mods. Including a boat tail, wheel skirts, undertray....

Yeah, those kei cars have some crazy gearing, so hopefully you can knock it down a bit. Looking forward to seeing what you can come up with :thumbup:

We haven't seen many Justy owners around.

(They're not actually Kei cars, Ben - about the size of a Metro.)

Are there no dedicated Justy forums where you can get the specifics on regearing your final drive or 5th? That'd be my first plan.

I have found one Justy forum that had some info on the gearing and even doing a swap. Though the only guy I know of that was actually going to try and do it ended up just swapping the tranny from the 87/88 into the newer car to lower the 4th and 5th gear. as for the final drive, I haven't seen any info on doing a swap for it.


I found that I can fit 165/65r14 tires on the car and I am hoping to get a set of potenza re92s for it unless there is a better lrr tire now?


Good news is I have the car running now, needed an exhaust valve and then it had a clogged injector. Still need to replace the distributor on it to fix a CEL code but its getting there.