Rear axle ratios

Asked by GuruXYYGM Oct 08, 2018 at 08:49 AM about the 2018 GMC Acadia SLT-1 FWD

Question type: Maintenance & Repair

Why do the new Acadias have the option for a 3:87 or 3:16 rear axle?  Is the
difference tied to the engine (i.e. 2.5 liter 4 or 3 liter V-6)?  Seems like this
should be relevant only to AWD vehicles.  Is that correct?

2 Answers
26,315

taver91 answered 5 years ago

It is more relevant to the vehicle's towing capacity.

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GuruXYYGM answered 5 years ago

Sounds plausible. These different gear ratios were specifically indicated for the rear axle, so I presume this option would only apply to AWD versions with the towing package.

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Your Answer:

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