timing chain guide question

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Mar 17, 2026 | 09:51 AM

Me 2

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Joined: Dec 2025

Posts: 65

timing chain guide question

I noticed while doing the timing chain on my 2009 H3t 3.7 that the top chain guide is missing. Was there a change in this on newer models?

Mar 17, 2026 | 05:16 PM

Spanovich008

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Joined: Feb 2016

Posts: 121

Yes, I believe this was a change in either 2008+ models or very late 2007 models.

Mar 18, 2026 | 09:27 AM

Doc Olds

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Joined: Jul 2007

Posts: 13,090

From: Boat Town USA MI

Wouldn't be cool if GM kept track of when, as in what date & SN#, all changes took place? Instead, we know it happened about such and such time, but have no exact certainty.

OK, I am done. Carry on.

Mar 18, 2026 | 12:24 PM

Me 2

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Joined: Dec 2025

Posts: 65

Okay, good to know, seems like all timing chain kits come with the top guide. I noticed there was no place for it but wanted to make sure, thanks

Mar 18, 2026 | 07:09 PM

hummerz

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Joined: Jul 2012

Posts: 8,999

From: C-Town

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