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[Andy A]

Was there ever a GM part number for just the bushing on its own?

[johnnydog]

The cap above the bush is part no 90305712, but the bush itself is part of the idler arm and not available seperately - at least from Vauxhall. Maybe it is from other suppliers, but I've no info on this.

[Andy A]

The cap above the bush is part no 90305712, but the bush itself is part of the idler arm and not available seperately - at least from Vauxhall. Maybe it is from other suppliers, but I've no info on this.

Thanks for the other P/N. 

[Enceladus]

Was there ever a GM part number for just the bushing on its own?

According to the ZF catalogue the bush is available separately from the arm as LEMFÖRDER 11602 03. AKA Boge 87-020-A. ZF made the original Pitman and idler arms for GM, likely supplied as part of a larger assembly.

There's a picture here. Which is not a recommendation, just the first result in the Google list.

I have not tried it myself. Pressing the old bush out and the new one in might pose a bit of a problem, possibly why the arm and bush are sold as an assembly.

[TheBoy]

Just been offered a old stock ZF Idler arm for less than £50. Was told these are the original idler arm supplier. Can anyone please confirm this?

ZF were the supplier.  But as always, what they supplied GM often isn't (for either cost or contractual reasons) what is supplied to the aftermarket channel.

Lemforder are part of the ZF group, and we know their idlers don't last brilliantly.

[Andy A]

Car has just past it's mot part test. So all good for another year. I won't bother with the ZF for now if they don't last long. I might send some emails out later to Powerflex ect and tell them about the forum and if they might want to make a bush for the idler arm.

Thanks all. 

[Vega]

http://www.omegaowners.com/forum/index.php?topic=140267.msg1816200#msg1816200