Im about ready to do my shift kit in my 700r4 tranny and also a corvette servo. Is there any advice that anyone can give me before i do this, things i should watch out for, how to and dont's
Thanks guys!!!

 

which shift kit did you get? do you have directions handy? make sure you keep everything very clean and dont let crap touch the floor.

 

Wear safety glasses. Tranny fluid in your eyes isn't pleasant.

Make sure to reinstall the manual valve in the valvebody BEFORE trying to bolt the valvebody back up to the case.

Watch those checkballs, they can go everywhere. Try to lower the valvebody evenly when you take it out. Remove the ***** and set them aside. Then remove the manual valve and take the valvebody to the bench.

 

im got a transgo shift kit. will the instructions tell me what to do? and how to do it?

 

Is that you Jar-Jar Binks?

If you have the kit, I'd say pull the directions out and see what they say.

If they don't have torque specs for the valve body, find that info and get an accurate torque wrench before you do it. Very easy to strip threads, just tapped aluminum and very soft.

 

I think the valvebody bolts are called to be 7lbs./ft. or so. Very ligth torque. I tend to just snug them down by hand, and make them "valvecover" tight. The problem with taking a reading from a torque wrench at such a low torque is that all torque wrenches are prone to error. The best way to measure bolt clamping force is bolt stretch. Unfortunately this is impossible on a bolt that goes into a blind tapped hole like the ones in the bottom of the trans case.

The instructions will tell you to use two particular bolts to draw the valvebody to the case. Follow these instructions, then get all the bolts in the valvebody hand tight before attempting to finally tighten any of them. This will keep you from warping the valvebody, seperator plate, or case from overtorquign any single fastener.

Follow the instructions to the letter. If you've got any particular questions, like (it says to drill the hole to between .086 and .110, which is best?), post back and I'll try to help.

 

hey, thanks for the help. after TKO said about drilling i might just be back. i never got how to measure in those numbers. i have alot of drill bits, im pretty sure i will have that size but how would i know what to use?

 

The plastic will have a little nub sticking up from the hole. Cut the nub off with side cutters and file it flat with a coarse file. That will show you the size of the hole. Just use an appropriate size bit, or just a hair smaller is okay.

Strictly speaking it isn't absolutely necessary to drill out the holes, but it seems to make the heating process go quicker, and any time you can save heating is good, becuase it keeps the heat from damaging the metal. Also, if you've got to use a propane torch you will really want to save any time you can, becuase it takes quite a while to build enough heat to melt the plastic with a propane torch.

 

why will i need to heat up the plastic?

 

If the u-joints use the plastic retaining method you need to heat it up to get it out of the ears so you can disassemble the shaft.

If they just use normal retaining rings (metal) don't worry about it, but then you don't need to drill anything either.

 

ok...Did I miss something here??? We were taling about a shift kit in a 700r4.....How the heck did we get to u JOINTS?



Trasgo kit you have to hole to drill. drill bits are usually included in the kit. Just make sure you follow the instructions .

 

Wow, I lost track of which thread I was on. I've been posting on another thread about u-joint replacement, and seem to have gotton confused. Thanks for the wake up call camaro_60181!

Everything I said about plastic is related to driveshaft u-joints, and has nothing to do with shift kits or transmissions.

The drill bit size in shift kit instructions is always given as a decimal, instead of the normal sizing like 1/16" for example. To figure out the decimal size just divide the number on top of the fraction by the number on the botom. For example, a 1/16" drill bit is .0625".

 

oh man!! i was getting scared about the shift kit i should be getting the kit here pretty soon. Im aslo going to do the corvette servo... any way i can take it head on while im down there? thanks alot guys you been a great help to me!!:hail:

 

NO PROBLEM.... i JUST DIDN'T WANT HIM GETTING CONFUSED!

Make Sure you watch the video. I did my first transgo shift kit this past summer and watching the video gave me good insight as what to do.