Rear end order option 8.8 or 9.75

[Samson16]

is there a way to tell which rear i have, whether 8.8 or 9.75?

The shape is different. 9.75 is asymmetrical

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[JExpedition07]

For OP’s use case 3.55 id say will suffice and get some better cruise economy.

 

[Mtnman1]

@shawizkid I suggest you pay attention to the use-habits of those who advocate the lower-ratio / physically larger gearset and ask yourself if that's really comparable to your situation.


Given that use-profile, IMO you're a good candidate for the numerically lower ('taller') 3:55:1 ratio. Nothing about your described use-habits would stress the smaller gearset and related components, you might as well get the day-in-day-out long-term benefit of slightly better mileage for that daily driving.

Yes, your driving style likely has more effect on mileage, but unless you've a propensity for frequent jack-rabbit launches the lower ratio will yield better mileage all other things being equal (e.g. your driving style).

Nor does anything in your use-profile suggest that you would benefit from the payload package that's required for the 3:73, making that a rather expensive front-end cost for IMO no benefit for you. The payload package may have the side-effect of slightly harsher ride when empty or lightly loaded (which seems to be your typical situation); is that a characteristic you want for your daily driver?

Just for your consideration.

Why would you want a less-beefier rear end? Who knows what will happen in the future, he may get into different things.

There is never a good reason to underspec.

The 9.75 is better in every way. MPG wont even be noticable.

 

[Mtnman1]

No worries, that's a different use-profile than stated in your original post; we can only make considered comments based on the info provided.

This is exactly why you NEVER underspec. Who knows what wil change in the future?

The 9.75 is better in every way. There is no good reason why you shouldnt order it. Not 1 valid reason to go with 8.8.

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