Re: well.. i blew the tranny again
I'm still on the second break.. didn't repair it yet. The tranny is still full of fluid so maybe nothing has welded. I will not go TH400 since this truck is my daily driver and I do alot of street/highway driving. I tought about this lemme know what you think. I have a 4L60e from a 07' trailblazer ss, I'll throw the more parts I can from it into the 700r4, add a deep pan, a big ass cooler w/ electric fan, tranny temp gauge to monitor it's temperature, ditch the big piston for a normal corvette one, ditch the transgo 2-3 kit, and add a shift kit (AND TRY NOT DRIVING IT LIKE I JUST STOLE IT) ..and if this doesn't work.. I'll go 80e cause for now I don't have 5000$ laying around right now. Lemme know what you think.
The input drum and everything associated with the input drum is different in the 2007. Read the following and see if it appeals more.
Don't use any pieces out of the 700r you've broken except the servo. They will be bent, cracked, heat warped, don't use it.
Fluid in it doesn't mean the front sun gear didn't get welded in place. I looked up the info on that trans. It was a basic build with a reinforced input drum and overrun clutch hub with a transgo 2-3 shift kit and corvette servo. Nothing special. Not sure why you thought you could bracket race a 700r4 with minimal upgrades.
You can go 4L60e. Don't throw tons of parts at it or you'll get false confidence and break it too. 60e has the EXACT same geartrain as the 700. Just with electronic controls. You'll need an early version with a 4 bolt tail end and a built in bellhousing. You syty adaptors would bolt right up to it then. NEW converter. You cannot use a 700r4 converter on a 60e. The clutch material is different. You'll need a controller. Get the Transgo 60e kit. Its a VERY nice kit. The corvette servo you can pull out of your current trans and use it. If you want to use that 2007 trans, call up advanced adaptors, tell them what your doing and see if they still make the kit to fit that app.
Check the AFL valve in the 60e you get and ohm all the electronics so you don't have to troubleshoot those. If you pull it apart and really check it good, you'll see that 90% of everything is the same. When you do this, put a REALLY large 12x12 cooler with an electric fan on it with a thermal sensor. This way, when the trans is hot and your sitting at a light, the fan can cool it. Your not gonna be nice to it.
Don't use a WIDE band on the front drum. Use the stock band unless it needs replaced and if it does use the raybestos high energy band. Very good material and they don't break. NO KEVLAR on the band!!! You can use a beast shell. The Z-Pak works really well in the 3-4. Use BW high energy for the rest. No blues, reds, just BW high energy.
I do the controllers if you need one you can do the wizard setup and it will get you 90% of the way there.
Again, that geartrain was not meant for what you were doing to it. I've built them to tolerate it but it is VERY VERY expensive and in the end you still have a little bitty sprag, and tiny planetarys and an itty bitty tube transfering TONs of torque through aluminum parts. NOT a recipe for racing.
Here's the adaptor you'll need:
http://advanceadapters.com/product/2322/(P/N-50-0405)-GM-4L60E-6-to-4-bolt-Converter-Plate.html
I believe sparkwire on here was using this. Give him a shot as he went 4L80e and may have this setup available now.
I edited this to try to put as much info in it as I could.