Vince @ FLT

Not to a jerk but why will this kit not work with the factory 553 servo? I agree that the 093 vet servo is a better option over 553 servo but it will work either way.

With the weight of these trucks there is no way a built 65 is going to take that kind of power I don't care who builds it. I honestly do not believe that a 9.0 C5 with a 4l60E is still going for three years without being freshened up. What is you buddies name and how many passes are on it? I'm good friends with the folks over at RPM but hardly believe this claim. Sorry but I have seen many guys convert to the 80 because they could not keep the 3-4 clutch in these transmissions. With the weight of these trucks and if you plan on pushing over 450 rwhp I believe it is best to look into a stronger option. I feel that the 80E is the way to go IMO. Vince

Personally I would recommend a 99 and later unit because the bell will be correct for your combination. Look for a 4x4 one so you do not have to buy a new output shaft if at all possible. The earlier units will work just fine except you loose the 12 o'clock bolt hole location. Also with the later cases you can get a structural inspection cover that will bolt directly to your engine oil pan and also to the transmission. This IMO makes the structure stronger. HTH Vince

I would scan your vehicle for codes. It seems to me that you are either having an issue with the band getting ready to fail or you have a DTC that is deleting OD. If you have any other questions let me know. Vince

I would scan your vehicle for codes. It seems to me that you are either having an issue with the band getting ready to fail or you have a DTC that is deleting OD.

Yes you have a 4l65E in your truck. Make sure to mention this when you purchase a unit if you are returning your old trans for a core. This way maybe they will give you a break on the price because your core already has some of the parts that they are selling you! Mainly the 5 pinion planets. I actually have an 06 4l65E on my bench at the shop for a unit I'm building. Good luck with your decision and if you need any other advise just ask. Vince

Couple things. Engine miss fires could be an issue. Also If you have a transgo hd2 kit and you installed the lock up valve in the valve body backwards you could have this issue. Just a couple of ideas. Vince

I read in another thread and also in an ATSG book that there are certain snap rings that should be replaced on every unit when overhauled. If I had to bet these are the issues with the limitations of the rpms that these units can handle. I would think that these issues could be corrected with a bit of machine work and installing a stronger snap ring or tack welding the snap rings in place. I have not really had a chance to play with these units but I do have some ideas for making some of the drums stronger in these units. I will be interested to see some of the failures to see what can be done to make these units stronger. Vince

There are some things that can be done with the 6l80E however it would be something that would take some time. I would be interested in playing with the concept of beefing up some of the parts inside that unit and I have a couple of ideas. The 6l80e will be the next generation of performance units for GM aftermarket builders such as FLT. With that being said right before I was let go I was working on one of my first units and did not get a chance to complete it. Not sure what they did but if I had to guess they just re-clutched it and sent it out the door. If there is something you would like to do please contact me in a pm. I do appreciate the kind words and I'm definitely taking the next step in learning new units and how they work. I'm having a lot of fun these days and that is a good thing! Have a good one. Vince Bielanski

Thanks Brad. I do remember answering the phone that day! I'm sure I was there doing RnD that day if I had to guess. Don't be sorry for me I have landed back on my feet and it only took three working days to do it! I went back to work for an old boss of mine and things are well. They have a great shop and take real good care of us. Its a great deal for me because I am learning to build many transmissions that I have never built. Most of what I build are 5 and 6 speed transmissions and these are the future of transmissions as far as I'm concerned. I work with three other guys that have probably forgot more about transmissions than most will ever know. With that being said I am now the student again and not the teacher! I'm having fun doing what I do and look forward to going into work each and every day again. Honestly I was getting burned out doing what I have been doing in the past and the future now looks better! Thanks for the kind words and if you need anything just ask. Vince Bielanski

Wow you have done real well with that FLT unit that I built back in 06. Good to hear its still going strong. I will miss building those units but with the new job I'm learning how to build many new units. Mostly 5 and 6 speed units which I guess will be the future of the industry. Thanks for sharing your success. Vince

Here's the thing. Forward or reverse really do not require any electronics's so I would highly doubt that would be the case. A plugged filter can be an issue however usually you will get some movement when you first fire up the vehicle until the filter plugs up with what is in the bottom of the pan. None the less if there is enough crap in the pan to plug a filter the unit is on its way out. Vince

4L60E-HD2

My suggestion would be to pull a cooler line to verify that you have a broken pump. Usually I would suggest pulling one at your trans cooler and stick it inside of a clear jug. Follow the transmission lines from the trans to your cooler. The bottom line on the trans is the pressure line so this would be the one to use so you know which line to pull at the cooler. If you fire up your vehicle and it does not pump with a pretty strong stream then you have a broken pump. Chances are if you do have a broken pump you will need to have the converter repaired as well. The other possibility is that you have a broken input shaft. This will cause a no movement condition as well. Either way it sounds like you will need to pull your trans and have it repaired. Vince

Carl the sensor for the temp gauge is located on the manifold switch on the valve body. They should be both the same from my experience. It is located in the lower left side of the manifold switch. Here is a picture for you.