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View Full Version : Red Koni shocks different front and rear? Official Answer



mmklaxer
09-20-2022, 04:53 PM
Quick question - I received 2 Koni shocks last week and 2 more today. All 4 of them measure just over 15" center to center. The manual reads that the rear shocks should be ~2.5" longer.

When I look at my inventory sheet, it calls out 4 Koni shocks p/n 30-1720. Maybe the 2.5" comment is no longer applicable, or or not applicable for an IRS build?

Can anyone with IRS chime in on the extended length of their rear shocks?

Thanks!

Namrups
09-20-2022, 04:55 PM
I upgraded to the double adjustable Koni shocks on my Coupe with IRS and they are the same size as the front.

michael everson
09-21-2022, 04:53 AM
they should be the same
Mike

mmklaxer
09-21-2022, 06:59 AM
they should be the same
Mike

Awesome, thanks.

rhk118
09-21-2022, 12:06 PM
Mine are the same part number as yours (all 4 shocks) and same front to back as well for another data point

Ted G
09-21-2022, 01:14 PM
Quick question - I received 2 Koni shocks last week and 2 more today. All 4 of them measure just over 15" center to center. The manual reads that the rear shocks should be ~2.5" longer.

When I look at my inventory sheet, it calls out 4 Koni shocks p/n 30-1720. Maybe the 2.5" comment is no longer applicable, or or not applicable for an IRS build?

Can anyone with IRS chime in on the extended length of their rear shocks?

Thanks!

The only thing different on mine were the springs. I had 500# for the front and 400# for the rear. However, FFR did send me an extra pair of 400# for some reason.

rhk118
09-21-2022, 04:08 PM
I should add yes 500# front springs, 400# rears...

mmklaxer
09-22-2022, 06:58 AM
Thanks all! Just to close this out in case anyone else goes looking - I heard back from FFR with the "official" response. For IRS all 4 shocks are the same. solid axle has the different length shocks called out in the manual.