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Old 03-13-2019, 02:48 PM   #29
Ryan Hubbard
Registered User
 
Join Date: Aug 2007
Location: Mission Viejo, CA
Posts: 288
Re: Daily Driving a Square Suburban

Quote:
Originally Posted by Ski-me View Post
^^^^ Love this truck!!

I assume you put in the 4L80e?
Yes, I put the 4L80E, originally came with a turbo 400.

As far as mileage goes, I still get 10 to 12 mpg. Of course here in the west we drive faster on the freeways, I am always commuting at 75 mph when there is no traffic so my fuel mileage shows this. But with the current set up, I am only turning 2500 rpms when I am cruising the freeway at 75 mph.
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