Does anyone knows what size and type of round rubber seals go in these holes on the floor behind the  seats? Who sells them?

If it's a 20mm hole, Banzai Motorsports were the only source when I last checked a couple of years ago.  Things may have changed since then.  Check the usual suppliers.

If it's a 25mm hole, both Banzai and Motorsport Auto (and probably others) can help you out.

Maybe i should measure the diameter with a caliper first.

44 minutes ago, jalexquijano said:

Maybe i should measure the diameter with a caliper first.

Yes

Any idea of what is the correct rubber plug?

Start with the size

18 hours ago, jalexquijano said:

Any idea of what is the correct rubber plug?

First find the size, then get a plug for that size.

Just took the measure with a caliper. Its 20mm! Who sells this size of rubber plug?

On 4/1/2019 at 7:55 AM, Namerow said:

If it's a 20mm hole, Banzai Motorsports were the only source when I last checked a couple of years ago.  Things may have changed since then.  Check the usual suppliers.

If it's a 25mm hole, both Banzai and Motorsport Auto (and probably others) can help you out.

 

I just sent him an e-mail. Hope he responds.

We've had them available for quite some time now.  We offer various plugs depending on the size that you need.

https://www.thezstore.com/page/TZS/PROD/classic03a13/30-8004