Join Date: Mar 2010
Location: Wentzville, Mo.
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Many threads on this but here's my personal opinion......T-56 is 100 pounds heavier than a TKO 5 speed and why does anyone need two overdrives? Along with being heavier it is also physically larger and bulkier and needs even more floor pan alterations than a 5 speed.
Now, I said TKO because that is what I have and have experience with installing. I have heard that there are other options for 5 speeds out there that can withstand the power of a Pontiac V8 and do not need floor pan surgery but I have no experience with those.
Another option that is way cheaper is just run a more "highway friendly" rear axle gear.
Personally I like to have my cake and eat it too and the 5 speed fits the bill nicely. I would guestimate a complete setup with bellhousing, clutch assy and trans to be in the $3000+ range.