I posted this over at www.SilveradoSS.com looking for some help from you guys too..

Greetings, I am looking for some help from someone here.

I have the capacity to get designed and engineered a conversion kit to replace your 4L60e/4L65e transmission with a GM 4L80e.

While I currently do NOT own a Silvy SS, however as a Typhoon owner, I am quite familar with the abuse a heavy AWD vehicle can dish out to the transmission (its a weak link on our trucks as well).

Turbotime and JSmanufacturing pioneered this swap on Syclones and Typhoons and now would like to offer the swap to the silverado SS guys.

Since I realize you dont know me from the next guy, I'd like to offer the following threads for your review :

http://www.syty.net/forums/showthread.php?t=28616

and

http://www.syty.net/forums/showthread.php?t=28121

and

http://www.syty.net/forums/showthread.php?t=28313


There are currently 2-3 trucks SyTy'ers running the 4L80e with atleast 4 more in the works. (more than likely, even more coming as their 700r4's give up the ghost).

So with the above said and shown, I hope you realize that we ARE SERIOUS about offering a kit to you guys. With that said... I need a favor, currently we need ONE transfer case (damaged/running whatever) as a LOAN to mock up the parts. (STOCK SILVERADO SS Tcase ONLY please). You will receive the case back after final mock up is completed.

For one lucky helpful person, for your efforts, you will receive the parts AT COST as they become available if you chose to excercise that option. Without the NVG 149 case we cannot offer the needed parts..

Here are the parts that we intend to offer (this may change as needed):


1. Billet Output shaft that fits your STOCK T-case and 4L80e

2. Crossmember to support 4L80e and NVG 149

3. Adapter to bolt the 4L80e to the NVG 149 T-case.

Optional Items that maybe also supplied upon request at additional charge and could possibly be had cheaper locally if you have connections..:

1. Professionally built Fully prepped 4L80e transmission

2. Lengthened/Shortened Driveshafts

3. Electrical Harnesses that make this conversion truly PLUG AND PLAY (available through speartech)

4. Custom Race Prepped Stall Converter built to your specs and RPM requirements.





There is some additional things to consider, your STOCK PCM will control this transmission, however, you will need the equivalent of an EFILIVE or HPTUNERS (not needed for syty apps) or some start of a stand alone transmission controller.. I plan on using the 4L80e on my Turbocharged LS6 typhoon and plan on using a custom operating system from EFILIVE to run the transmission.. There are a couple of options here..

Obviously this isnt going to be the cheapest mod for these trucks, some owners will never need it.. However, JSM and Turbotime are going to assume the R&D costs associated with the hard parts, we just dont have a transfer case to use for MOCK purposes. If you want to contribute or can help or have a scrap/spare case laying around you dont need for a while please let me know..

Tydriver@gmail.com or PM me..

I am in Indianapolis, and the fab shop is in Louisville.. It would be helpful to have some one close to either of these locations.

Thanks for your time and if you'd like to see some AWD donuts check this link out:

http://www.northeastsyty.com/videos/...wd_burnout.wmv


The truck in the video has a GMHTP photographer riding shotgun at our national event a couple of weeks ago..

Todd

 

That donut was sweet. Dont have an awd t case though just the old autotrac or else I would be game.