I see GM Chevrolet part number 14061685 (AC Delco CT1078)
listed for the 1997-2004 V8 and V6 but no mention of it
fitting the stovebolts. It's a needle bearing pilot.
And although the sintered metallic "bushings" are listed as a
"bearing" in a lot of the catalogs, they are, none the less,
a "bushing". They are shown in the parts books as 3752562 and
are the same from 1939-1969, which is the latest parts book
that I have available to me.
The dimensions of the bushing and the bearing are different
enough that I would not think them interchangeable. Somewhere
in that time gap there appears to be a change in the dimensions.
The 14061685 needle bearing ID is .006" larger than the
bushing ID and if that is accurate it would be a sloppy fit
for the clutch shaft pilot. The OD of the bearing is also
larger by .002" which is a lot for a press fit bearing cage
which is normally a couple of tenths. Driving that in would
not do well for the needle clearance and would probably
overheat the bearing and destroy it in short order.
It's difficult to find accurate dimensions for the needle
bearing, other than what is listed in vendors catalogs, which
I wouldn't trust. I don't have a needle bearing to measure
nor do I have access to plug gauges to accurately check the
ID even if I had one to measure.
In addition, the bushing dimensions in the parts books from 50
years ago are given in fractions and may have been nominal
dimensions as interpreted by the technical writers.
Confusing isn't it!
DG
