transgo question

[bridawg8]

i am curious as to why the transgo shift kit that makes the 4L60E transmissions act manual (part number on summitracing isTRG-4L60E-S) is not recommended for street use does any one know the reason or am i better off calling them? thank you for the help

[neo71665]

Because it turns the tranny into a manual shift auto clutch. You will have to remember you can't just put it on D and go, or anybody that might drive your truck. I've seen them on street trucks and they work fine as long as they are shifted correctly.

[bridawg8]

which makes sence, so running the transmision like that daily does not effect it then?

[neo71665]

Only one I've had somewhat personal experiences with was dads 89 race truck. Not a 100% DD but he dives it on the street a lot and it has a th350 with a manual valvebody in it. He drove it fine for about 3 years. Sitting in the shop right now getting a new motor.

[Deeze49686]

it also gets rid of lock up, and if you drive it on the street, it will kill the convertor. these kits are NOT meant for the street at all.

you use one of these, and the trans must be built around the kit, hence a dummy l/u convertor, blocking valves in the pump so you dont lose lube oil.
it's alot more that just a valve body kit, its a reprogramming kit.

use the small orange box and retain the automatic control.

[neo71665]

^ guessing he knows more about the electo trannys than I do so go with what he says.

[PBA]

The "full manual" kit "does not" get rid of the torque converter lockup. "If" you decide to use a non-lockup torque converter, then you will need the TransGo non-lockup valve to replace the TCC valve in the front pump that is in there now. But there is no reason not to use a non-lockup torque converter on these units. To use the kit successfully, the transmission should be built from the beginning to handle the HP and torque you are going have. The Street/Strip Performance Shift kit will allow full automatic control, and manual control on the WOT upshifts. This is what I would use here. I have the modified TransGo Street/Strip Performance Shift kit. Let me know?

[Deeze49686]

yes it will work if you modify the kit, but thats not what he asked, and being new to any kind of trans repair, i would not recc him even trying it.

i wouldnt even recc a full manual in an eletronically shifted trans at all, as it screws with pressure rise and everything else.

yes he can go ahead and use a hd2 kit, but if he ****s it up, are you going to be there to stand behind your reccomendation of using it?

[BlazingSaddle]

Yes there is a good reason to not use lockup. If you happen to throw away the puter and need to work on it anyway and need a new converter too. then get rid of it. Having to hotwire it or switch it by switch is a true pain and really messes up drivers that borrow the truck.

Nothing wrong with full manual other than the added cost of a good shifter. Shifting on the column is for the birds and doesnt work. get a good ratchet with nuetral lockout and be done with it.

yes the non lockup valve kit is great. IT DOES NOT get rid of lockup in that valve body Kit.

If I were doing the trans over, I'd convert it to all vacuum and be done with the puter. Oh a carb is nice too. Just think of all the sensors you'll never have to replace. Plugs are cheaper. A stock 390 carb and you'll have better gas mileage too. Rip out the abs, air bags, cat and you'll be 3 passengers lighter too.

I know, just dreaming. A v6 like the 4.3 with a four speed overdrive would get 24-25 miles to the gallon with a good old fashioned tune. Yes, I am old, but gas is too expensive too and buying a new car is even more nuts.

[Deeze49686]

4L60E-3
4L60E 93-05

Stick Shift; Full Manual Control; Converts back to automatic. For transplant or use with no electrical: Includes: 46-MOD (Vacuum controlled line pressure).






with this kit, which is the only full manual kit transgo makes for the 4l60E, you have no electrical control. NO PWM, NO TCC APPLY, nothing.

it uses a modulator in place of the epc solenoid.

ive used these kits before, and i don't care who you are, the thing will NOT lock up. yes you can shunt the iso valve blocked, and put a checkball in the tcc snout, and have it chug like a mofo. try to launch with a convertor that wont stall out. wont work.

now, if you want, you can call transgo direct, 626-443-7451 and tell larry that you magically got lockup to work with this kit, and that Neal from gtt, who is a member of the tech team says he wants to know how.