The 4-t5 has a 3.97 first vs a 3.3something, all the gears are a little steeper, it felt like I put 4.10's. I just bolted it in, so I know it fits. No changes. But I do believe its temp. kind of thing. I also think the turbo t-5 is differnt, now that I think about. hmmm, not sure of specs on it.
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93LXcopcarSOLD14.3@96 @ 4500ft 2.02 60ft on street tires.
my 67 ranchero NOT A 390 ANY MORE! 460! 3.70's cast manifolds, comp cams 262H, performer, 750DP 100K out of 79 F250
NEW(oct20/02)14.58@95mph 2.3 60 ft
corrects to:13.86@100
66 merc comet351w, isky roller 600 lift 268/260@.050, vic jr. 700DP, 5000stall, 4.56's c-4, 3400lbs with driver
12.3@110 @ 4000ft 1.69 60 ft
corrects to:11.69@115
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