RX300 Suspension Springs

[nowakkam]

Hi all 🙂

I am a proud owner of a 04 RX300, and I have come across something odd I think. I have swapped out the air suspension on my car to a standard spring setup (relatively straightforward if it wasnt for having to cut all the stabilisers in half :)). The suspension comes from a dead RX400h (engine gave up on a lazy owner AFAIK), however the feels rather bumpy, mostly noticeable when tackling speedbumps, when the car 'jumps' up it feels rather harsh, then bit softer when it drops back down. I have a friend's stock '05 RX300 serviced by the dealer to compare, and his ride feels much smoother - car feels like a cloud driving over same speed bumps at 30mph.

I have tried searching online with no good result, I have had somebody tell me that sprigs on 300s and the hybrids are different since the extra 600ish lbs of a Battery in the car, however as far as I've searched - the parts numbers are exactly the same for both hybrids and non-hybrids... has anyone got knowledge about this?

Kind regards,

Kamil

[m4rkw]

Hi Kamil

You can look up part numbers here: http://toylexparts.com

Maybe there are different springs for air suspension vs normal shocks? What shocks did you put on it?

Mark

[nowakkam]

On 2/20/2021 at 5:57 PM, m4rkw said:

Hi Kamil

You can look up part numbers here: http://toylexparts.com

Maybe there are different springs for air suspension vs normal shocks? What shocks did you put on it?

Mark

Hi Mark,

I have actually put a complete and stock non air set on all four corners, it came from a 450h. After having 3 air shocks fail on me withing a year I decided to go spring. It was a straighforward swap as everything is fitted exactly the same way.

I will have a look at the parts website once I unpack from the home move. I really appreciate this though - I've looked up and down even resorting to messaging eBay sellers about the part numbers for 300 and 450h springs 🙂