Modify backingplate to 4"

**Black Widow** · 05-01-2015, 12:48 PM

Hello, I am a user of the Flex 3401 polisher. I wonder if it is possible to modify the default (5.5") or small (4-3 / 8") backing plate to 4" so that I can use spotpads?

**02xtreme07SS** · 05-01-2015, 01:34 PM

Get yourself one of these.

FLEX XC3401 Changeable Backing Plate System

Problem solved.

**Kamakaz1961** · 05-01-2015, 02:27 PM

Originally Posted by 02xtreme07SS

Get yourself one of these.

FLEX XC3401 Changeable Backing Plate System

Problem solved.

+1

**Black Widow** · 05-01-2015, 03:49 PM

According to Some reviews the quality of the adapter kit is very poor

**Kamakaz1961** · 05-01-2015, 04:16 PM

Originally Posted by Black Widow

According to Some reviews the quality of the adapter kit is very poor

Well I have been using mine for over 1 year with no issues. My guess is that they did not put the backing plate in properly.

As for those that have had bad experiences it could be user error too.

You have to make sure the backing Plate adapter aligns with the Flex mounting system. Make sure you oil the felt ring too.

Again, no issues at all and I use it quite a bit.

**VISITOR** · 05-01-2015, 07:48 PM

Originally Posted by Black Widow

According to Some reviews the quality of the adapter kit is very poor

there's always going to be some lemons in just about any product(s) made and i'm sure out of the hundreds/thousands they have sold that work flawlessly, there's a small percentage that have issues. dave from lake country has a presence on here and is only a PM or phone call away if there is a problem...

**roguegeek** · 05-19-2015, 04:46 PM

Originally Posted by 02xtreme07SS

Get yourself one of these.

FLEX XC3401 Changeable Backing Plate System

Problem solved.

Everyone is recommending these on the 3401 when talking about 4" plates, but is no one concerned with the reviews of the system? I know that's keeping me from considering it right now.

**Andy B. Cool** · 05-19-2015, 06:21 PM

I have had several of the backing plate systems and I have blown all of them out. Stick with the Flex brand backing plates only for the best longevity and performance.

**Black Widow** · 05-20-2015, 03:24 AM

I will check first if it's possible to change an original backingplate (with original quality) to 4" although i'm afraid that it will not cover the gearing house.