Gxp and gt - Pontiac G8 Forum: G8 Forums - G8Board.com
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post #1 of 3 (permalink) Old 10-11-2017, 07:36 PM Thread Starter
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Gxp and gt

What is the difference on the gxp transmission and diff with the gt?
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post #2 of 3 (permalink) Old 10-11-2017, 07:44 PM
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The Automatic transmission in both the GT and GXP is the 6L80. The GT has 2.92 Gears and the GXP has 3.27 gears in the rear end.

The Manual GXP uses a Tremec TR-6060 with 3.7 Gears in the rear end.
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'09 PSM G8 GT - OPG Intake, DOD-Delete w/ Stage 1C 218/229 .600 Lift 117.5LSA, Kooks 1 7/8 Mids, Solo Axle-Back w/ X-Pipe, SuperPro Bushings (Front and Rear). BMR Sway Bars (Red)
Power: 400HP/392TQ

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post #3 of 3 (permalink) Old 10-31-2017, 12:14 PM
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The GXP Auto adds an external transmission fluid cooler.
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09 MGM GXP A6 #1002
BTR Stage 2 LS3 Cam, Vigilante 2800 stall, Kooks LT, Corsa Catback, VCM OTR, GXP wheels widened 1.5" with 285 rears. 444rwhp, 398ftlbs, [email protected]
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