If you mean AODE(94-95) with 2.40 1st gear,4.10s would be better. If you meant 4R70W with 2.84 1st in the 96-up, then 3.73 gears would work well. At 60 mph with 3.73 gears, The line is just a tick over 2,000 rpms. With 4.10s I would imagine the rpms would be about 6200-6300. If you have the 4R70W, 3.73s and a converter will be more than enough to get you going and keep you going. I ride the 3.73 gears in 3rd up until 120 mph so I still have top end speed.
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99 Silver GT
4R70W, Borla Cat Back,
SHM Slotted Rotors, custom 10.5" ProTorque 2600 stall converter, Transgo Shift kit, Redline Synthetic ATF, Cooler, Bassani X-Pipe, Vortech V2 S-trim, 3.73 gears, 70 mm T/B, Mac Adj. uppers & lowers, ROH ZR6 17X9.5 & 17X8.5 with Nittos, BBK(Walbro) 255 pump & FMS Shorty Headers, D&D Tubular K-member, Coil-overs, & A-arms. Currently running 3.33 pulley at 10 psi(lowered shift points), but not dynoed yet.
Dyno:
316 rwhp
332 rwtq
Dyno 3/26/00 After fuel mod, FMS headers & Pro Torque Converter.(RUN #6)
338 rwhp
342 rwtq
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