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Old 02-25-2008, 09:06 PM   #1 (permalink)
Walking
 
Join Date: Feb 2008
Location: alberta
Drives: 2500 / 8.1 / avalanche afe cold air, airaid throt
Posts: 1
8.1 avalanche transmission

i need some help, im looking to replace the trany on my 03 avalanche 2500, i have made many upgrades on the motor and am running around 500 hp ,next summer i hopeto be able to supercharge the 8.1, but i definitly am going to need a new transmission first as i find mine to be slipping already at about 110 km/h .... where and what should i be looking for? as well would i be able to get away from the 4spd and convert to maybe a 6, with a dual overdrive?
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