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Re: 1989 Suburban with 5.3LS/700R4
Quote:
Originally Posted by Edahall
The 10 bolts should hold up fine but anything can be broke by someone who tries hard enough. However, lower ratio gear sets are inherently weaker than the higher ratio gear sets. Where it would get you is if you into heavy pulling.
Have you noticed any fuel economy differences with the change?
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No heavy pulling with this 'burb, I use my '06 3/4 ton 'burb for pulling. Haven't run enough fuel through it yet to notice a fuel economy change, but I have to believe it's going to be better without all the downshifting. I'm buzzing down the highway at 70 and only running 2200-2300rpm.
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The Stable:
1952 GMC 1/2 ton, 5-window...Owned since age 16...that was awhile ago! Torn apart and waiting for my boys to get old enough to help me.
1990 Chevy K5, 5.3L, 4L60E, slowly going back together as my dune truck.
1951 Chevy 1/2 ton, 3-window...building to sell.
Daily Drivers: 1998 3/4 ton Burb with a 6.5 Turbo Diesel and 1994 1/2 ton Silverado.
I grew up in Flint, Michigan so I can't help but to bleed Chevy!
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