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thom4782 · 10-28-2013, 06:08 PM

Here's what I see...

There are no verified in service dual row LN Retrofit failures across the years they have been available. In another forum, one LN developer recently expressed his view that dual row Retrofits are “…pretty much bulletproof and will probably never need replacing.” In theory, DOF will extend the service lifetimes of IMSBs although its developers have never indicated to the best of my knowledge by how much.

So it's up to you. If you believe a belt is sufficient to keep your pants up, the install the Retrofit. If you're a belt and suspenders type person, then you might add DOF into the mix. If you do, make sure you order a LN Retrofit compatible DOF flange.

My car is single row. For me, I'm planning to install an IMS Solution as soon as I can find a competent local installer.

Best of luck.

PS: My personal view from all the data I've seen is that majority of single row OEM bearings failed because they weren't stong enough. Dual row and single row OEM bearing also failed when their seals leaked thereby compromising lubrication.

10-28-2013, 06:08 PM	#127
thom4782 Registered User Join Date: Sep 2010 Location: Foster City CA Posts: 1,099	Here's what I see... There are no verified in service dual row LN Retrofit failures across the years they have been available. In another forum, one LN developer recently expressed his view that dual row Retrofits are “…pretty much bulletproof and will probably never need replacing.” In theory, DOF will extend the service lifetimes of IMSBs although its developers have never indicated to the best of my knowledge by how much. So it's up to you. If you believe a belt is sufficient to keep your pants up, the install the Retrofit. If you're a belt and suspenders type person, then you might add DOF into the mix. If you do, make sure you order a LN Retrofit compatible DOF flange. My car is single row. For me, I'm planning to install an IMS Solution as soon as I can find a competent local installer. Best of luck. PS: My personal view from all the data I've seen is that majority of single row OEM bearings failed because they weren't stong enough. Dual row and single row OEM bearing also failed when their seals leaked thereby compromising lubrication. Last edited by thom4782; 10-28-2013 at 08:48 PM.