jonnyboy

iTrader: (3)

I have a 2006 silverado 5.3 and I'm going to start mods pretty soon; I have read that the weak link in the drivetrain will be my tranny. At what point will I have too much power for the tranny? After that, what can the stock rear hold?

I plan on the yank tt3000, 2002 ls6 cam, 4.11 gears, and probably some ported ls6 heads. next year after I get more miles on the truck (22,000 now) I plan on at least a 100 shot, unless I go FI. At what point will I need to upgrade the tranny? Thanks in advance for all the help.

trever1t

iTrader: (14)

Stock transmissions are protected by Torque Management in the PCM. What i mean to say is that the stocks transmission is already too weak.

KevinF56

iTrader: (9)

yeah they're weak right off the lot. there's no set horsepower number that will break them. its all luck. best thing to do is to put in a shift kit, big tranny fluid cooler, and some servos and hope for the best. those mods will help. but if you start getting into serious modding and hp/tq gains, nothing will help your transmission.

blake2kz71

iTrader: (17)

theres no mileage gurantee either. iv seen them go at 30k with no mods at all. I can vouch for for it, mine went at 50k with nothing but exhaust. my rearend (g-80) went out at about 40k. more than likely they will last if you drive like a grandma. before i did any kind of modding i would definately do the trans mods like said above. its not a question of if it will go out its when....

ChevyTrukRacer99

iTrader: (2)

Yup, it's not if, it's when. Mine just went out at 100k and the only mods i had were intake/ headers/ exhaust. Plus i had a shift kit and a cooler. If you are serious about making power, have the tranny built too.

blacktransam

iTrader: (13)

look at my truck.. my tranny is holding awesome stock.. but my rear puked