Allison 5sp: 6L90 Replace the seal on the filter or not?

Dozerboy

Well-known member
Jun 23, 2009
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Last time I did the tran filter on my 6l90 the acdelco filter came with a seal. Well looks like they have phased out that part number and the new one is TF913. Which doesn't come with a seal it sounds like. So is it not really nessary to replace the seals now? I just though it was odd the new part doesn't come with one and I can't seem to find just the acdelco seal by its self.

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