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Thought I'd post my findings.
Windage tray: 24503912
3.4 main bolts w/ stud tops: 10162001 (sold individually)
On my '90 motor, the windage tray drops right into place, however, there is some contact with the oil pan on the left (front in fwd) side, aft of the starter. Some cutting is required, but not much. I haven't finished, but I'll post before/after pics when I do.
It's been said that the one bolt under the oil pump will not clear the pump when using the studded bolts from the 3.4. I ordered a full set of 8 instead of ordering 1 normal bolt + 7 studded (they were cheaper anyway, not to mention the additional shipping GMPD would've tacked on for the different part number). I intended on just grinding down the offending stud to clear it.
Using a Melling M95HV, the stud clears the pump with no grinding necessary. There's only about 1/32" there, but it's there.
Windage tray: 24503912
3.4 main bolts w/ stud tops: 10162001 (sold individually)
On my '90 motor, the windage tray drops right into place, however, there is some contact with the oil pan on the left (front in fwd) side, aft of the starter. Some cutting is required, but not much. I haven't finished, but I'll post before/after pics when I do.
It's been said that the one bolt under the oil pump will not clear the pump when using the studded bolts from the 3.4. I ordered a full set of 8 instead of ordering 1 normal bolt + 7 studded (they were cheaper anyway, not to mention the additional shipping GMPD would've tacked on for the different part number). I intended on just grinding down the offending stud to clear it.
Using a Melling M95HV, the stud clears the pump with no grinding necessary. There's only about 1/32" there, but it's there.