Do I have to upgrade transmissions?

[1994chevy]

Hey guys I'm new to the site and the ls world. I just bought a 04 swb Chevy with the 4.8. I am planning on installing a cam long tubes, etc. I was wondering if I need to get transmission work done or do a swap on it to hold up to the power? And I was also wanting to lower the rear end to sit level with the front, do I just get 2" drop shackles? Gonna need tires soon too. It has factory 17s what size do you recommend? I figure a little wider than factory would look good just don't want an expensive tire

[kerrige]

Do you have to? No, is it more than likely that you will need to eventually? Yes.

[farmtruc]

Install a Transgo hd2 shiftkit to prolong the life of the trans. Along with a good trans cooler.

[1994chevy]

Install a Transgo hd2 shiftkit to prolong the life of the trans. Along with a good trans cooler.

Where do I buy one of those and what's the price like? An I heard of doin a corvette servo, what's the deal on that?

[1994chevy]

And what does the shift kit actually do?

[farmtruc]

any trans shop or summitracing.
it'll quicken the shift times and firm up the shifting.
the box has all the features and changes it does; well worth it!
servo compliments the shiftkit and does the same thing.

[1994chevy]

Thanks for the info! Is it hard to install?