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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 03-30-2009, 01:52 AM   #1
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How many total engine/tranny mounts are there on the 1993 Bonneville Series I & what are their names/locations?

Thanks in advance.
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Old 03-30-2009, 07:34 AM   #2
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In total there are four mounts.

Front transmission mount - looking down from the front of the car is located on the front of the tran, slightly left of the airbox location.

Rear transmission mount - this one is located on the rear of the trans, in the same relative location as the front mount, only on the back instead of the front. This mount is wedged between the power steering rack and the subframe. Overall the toughest to swap due to it'* sandwiching.

Torque axis mount - This mount is located on the end of the motor at the passenger side.

Dog bone mount - This mount is located on the back side of the transmission tail shaft on the passenger side of the car and is the easiest mount to swap because it does not carry any of the motor/trans weight.
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Old 03-30-2009, 05:36 PM   #3
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thanks, bill - excellent info!
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Old 06-17-2009, 03:12 PM   #4
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Can you say which one of these is likely the cause of a clunking sound during acceleration?
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Old 06-18-2009, 06:46 PM   #5
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in my case it was the:
Torque axis mount - This mount is located on the end of the motor at the passenger side.
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Old 06-18-2009, 06:47 PM   #6
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also, see this thread I started on it: https://www.gmforum.com/t280557/
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