tranny issue??

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logic951

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hey everyone, im new to this forum, i've been posting my question around, and have yet to get an answer, so if anyone can help, please and thanks in advance...

Hi everyone, i have an 03 tahoe 4.8 liter... And I recently put a audio system in 2 amps and 2 subs... I was careless due to money constraints to purchase a high amp fuse for the power wire, and due to this I know it has put some strain into the battery that has been in for almost 2 years and altenator...so i bought a new battery today, and the issue is still there... its gears 2-3 that seem to shift like its slipping, could the alternator cause this??? or anything else,

another thing, is over the weekend, and since ive had the truck (bought used 3 months ago, carfax was clean) the truck drove fine. but when i listened to my system at a high volume and took off, the truck seemed to sputter as it shifted from first to second, and second to third... but when the volume was low, or the stereo was off it shifted fine, but now all of a sudden, its doing this... I bought some lucas oil transmission fix.. and it said its almost instant you notice the difference, but i didnt notice anything, maybe it takes more time... but please help!!

any ideas??

thanks!!
 
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