Thanks Toni and Aaron for your advice.

Yes i guess I might have to spring for some new shocks. Only thing is that the front and the rear shock heights are in extreme opposites. The front friction dampers i had to put like 7mm of spacing inside them so the total travel may only be a few mm. Also, the ball joint used to hold the bottom part of the friction damper is not totally secure in the front arms (it's being held in with a bunch of teflon tape) cause i'm using the end of the hole that was meant for a screw pin that has been cut off a few mm. On the rear side, there are no spacers used cause the shocks have to be as long as possible.

I know it's illegal but can i mount a 21T pinion if I drill another hole into the chassis? And just wondering, isn't technically a RWD with a 21T pinion faster than a 20T pinion FWD?

Thanks again.