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Tony_SS · 04-02-2010, 10:45 AM

I talked to this guy here locally for awhile yesterday.. turns out he's a pretty big deal.. has quite a few sponsorships and all. He went through the math and to put it back to factory RPM 4.56's would do exactly that, but he suggested 4.88's for a little more umphf. And since I wont really be going over 65mph in it, we decided they'd work perfect.

04-02-2010, 10:45 AM	#57
Tony_SS Registered User Join Date: Dec 2008 Location: Washington, MO Posts: 643	Re: Here is my 1990 Suburban I talked to this guy here locally for awhile yesterday.. turns out he's a pretty big deal.. has quite a few sponsorships and all. He went through the math and to put it back to factory RPM 4.56's would do exactly that, but he suggested 4.88's for a little more umphf. And since I wont really be going over 65mph in it, we decided they'd work perfect.