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Old 10-16-2009, 01:34 PM
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Default 99+ 5sp

What transmission comes on the 99+ silverados?

How reliable are they, do people do t56 swaps?
Old 10-16-2009, 01:39 PM
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i beat the hell out of mine...its still going, after 4.3 DD driving, and now cammed 4.8 driving, OH and i had a 150 shot on it for a little while.

Also there is a search in the option bar above...use it...there are 10-15 people with t56s in their trucks.
Old 10-16-2009, 02:15 PM
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Originally Posted by wilson34
What transmission comes on the 99+ silverados?

How reliable are they, do people do t56 swaps?
They come with the nv3500 and they a very reliable for daily driving. I had one in my 2000 and towed with it often and drove it hard. I took it out to swap for a M12 T56 for performance reasons and after 175k miles; the 5 speed started to get tired. Hirdlej has a 5 speed with a 6.0 without a problem.
Old 10-16-2009, 02:35 PM
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Yup, I'm running mine behind a cammed 6.0L It hasn't hiccuped once now after over a year of the 6.0L. Clutch holds great, trans has no slop, everything works as it should. Only gripe I have is the slow 2-3 gear shift. Other than that it's fun Don't listen to all the internet warriors/parrots telling you it's a weak trans. Mine has held up to 400 RWTQ with repeated abuse and 380RWHP.
Old 10-16-2009, 03:55 PM
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Yup, I'm starting to have more confidence in mine despite all the storied "woes" of the NV3500. It's had a synchro noise, noisy TOB, and whining input shaft bearing for a while now, but it still takes everything I toss at it with my 4.8 and aggressive shifting. Sure it shifts slow, but hell it's still a truck tranny, and it'll hold until I find the time/money for a T56 swap for the better ratios, better internals, and double over-drive.
Old 10-16-2009, 06:42 PM
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only problem i have with mine is it whines worse than a newborn, then again I beat the hell out of it. lol
Old 10-16-2009, 06:56 PM
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I agree about the 2-3 shift...but occasionally i can get on a roll and bark third every try for like 1 day hahah
Old 09-06-2010, 03:48 PM
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I just recently had my 3rd nv3500 completely crap out on me. The first 2 went with my 6.0, cam and LT headers. This recent one went with my PT-88/408 combo, which was totally expected. Luckily I have a built T-56 from Tick Performance sitting here waiting to go in. Its about that time!!
Old 09-08-2010, 06:21 AM
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8.1 in front of mine, but soon as i get back from leave got a tick 6 speed going in mine as well
Old 09-09-2010, 03:15 PM
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Originally Posted by xx_ED_xx
8.1 in front of mine, but soon as i get back from leave got a tick 6 speed going in mine as well

Just be sure to ask them if they are going to include a bellhousing and a shifter with yours. They did not include either with mine. I was kinda surprised and a bit disappointed considering what I spent with them.


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