Single row or double row?

[runjmc2]

It's a moot point. As we now know, if you have a double row it will never go bad anyway. If it is a single it's a timebomb and you are covered. End sarcasm

[southernstar]

I have a 2000 2.7 with a build date in August of 2009 and have been told that even for a car that was produced so soon after the development of the single row bearing, there is no way of knowing which bearing was used without removing the transmission and inspecting it.

The bottom line is that, even though I have installed a magnetic drain plug, change the oil every 3- 4000 miles and inspect the oil and filter for particles and debris, I still intend to replace the IMS bearing when the clutch needs replacement. Considering the much better reliability on the double row bearings, the question is whether it would be preferable to install a new factory double row bearing, rather than an aftermarket one. Does anyone know if the double row bearings are still available?

Brad

[Skootnasty]

Originally Posted by runjmc2

It's a moot point. As we now know, if you have a double row it will never go bad anyway. If it is a single it's a timebomb and you are covered. End sarcasm

Not breaking apart, and not being bad are not the same things. The dual row bearing still suffer from rubber seal failure which displaces the sealed grease. With twice as many balls there is twice as much ferous metal debris that can/will conaminate other bearing surfaces (namely cam and crank surfaces).

The improved durability against breakage/toal failure is a compromise to more metal contamination circulating through the lubrication system.

If you have an engine with a servicable bearing its worth changing as early as possible. IMO

Skoot

[Perfectlap]

Originally Posted by Skootnasty

Not breaking apart, and not being bad are not the same things. The dual row bearing still suffer from rubber seal failure which displaces the sealed grease. With twice as many balls there is twice as much ferous metal debris that can/will conaminate other bearing surfaces (namely cam and crank surfaces).

The improved durability against breakage/toal failure is a compromise to more metal contamination circulating through the lubrication system.

If you have an engine with a servicable bearing its worth changing as early as possible. IMO

Skoot

good points. Which sort makes me wish there was an LNE no-bearing upgrade for dual rows.
But I guess the money is with the single row sales.

[Skootnasty]

Originally Posted by Perfectlap

good points. Which sort makes me wish there was an LNE no-bearing upgrade for dual rows.
But I guess the money is with the single row sales.

LOL!!!! Yes the money was absolutely with the single row bearings. I just wonder where they found such a good deal on the oversized single row bearings?

I bet it fits some Czech tractor transmission that was obsolete in the 80's.

Skoot