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Old 06-24-2012, 02:15 PM   #1
gramps77
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Join Date: Oct 2011
Location: Plumas Lake, CA
Posts: 386
3.40 12 bolt gear ratio?

I just found my build sheet under the seat and it states 3.40 gear ratio.
First Ive ever seen a GM 3.40. I was thinking it may of had 3.08s with the th-350 it DID have. Now Im debating installing some 3.73s with the new 700R4. But now 3.40 to 3.73 doesnt seem much of a change. Although when it goes into overdrive it does seem to be right on that bogging line at 65-70 on the freeway
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