[Trucknut]

I have a 1978 F-150, 1/2 ton. 2WD with a bad C-6 Tranny. I will be swapping it out with another identical C-6. With the truck on stands and all four wheels off the ground, what is the proper start-up method to be used?

Thanks.....Chris

[tnsmith10]

put 4 quarts in it b4 u start it, then once its running, add 6 more. run it through the gears and check running in park... this is if the trans is empty, should hold 11-12 quarts., maybe more if ur running a deep pan, or auxillary cooler.

[Rob Keller]

Cris by "start up " I'm guessing you mean remove & install?

If so here is my take on it

!! Disconnect Positive & Negative on Battery!!

!! Make sure truck is sitting firmly on stands!!

* Remove "U" bolts on drive shaft
* Wrap "U: joint cups with electrical tape so the dont fall off
* Unbolt carrier bearing if its a 2 piece shaft
* Remove speedometer cable
* Place oil pan under tail shaft
* Remove shaft
*!* Insert a old extra yolk or a cap plug to keep oil from leaking out later
* Remove shift linkage
* Remove modulator vacuum line
* Remove down shift linkage
* Remove electrical harness to neutral safety switch
* Remove transmission lines
* Remove starter
* Remove inspection plate/window
* Remove converter bolts { 4 }
* Push converter off the flywheel/flex plate
* Remove cross member bolts { 4 }
* Support transmission
* Remove cross member {Make sure to balance the trans because the jack will now be the support & will be there until trans is out}
* Remove cross member
* Lower trans tail shaft as much as possible to access the bell housing bolts
* support engine @ oil pan with a bottle jack & some locks of wood making sure you have travel both ways in the jack for reassembly adjustment
* Remove top bell housing bolts{{These have proved to be a BIG PITA unless you use a long 1/2" 3' long extension & a good swivel

!!I STRONGLY SUGGEST YOU HAVE 2 PEOPLE WHEN PULLING IT OUT !!

* Remove the rest of the bell housing bolts & wiggle the tail shaft & the trans will be sitting on the jack
* Slowly lower it down and flop it onto ground after it is all the way down

HOPEFULLY your exhaust isn't in the way

Unless I missed something that should get you started there are a few tips that you should do be fore the install like check flywheel & replace front seal in transmission if I think of anymore Ill post them I hope I didn't miss anything

Just take your time dont get into a rush and you'll keep all your body parts free from damage & keep you blood inside of your body

good luck & BE SAFE!!



ROB

[Trucknut]

I pretty much have the removal and installation part down. Everything helps. It was when and how to put the fliud in that I wasn't in the know about. I've always been a standard 3 and 4 speed guy, but I'm tired of jamming gears and more into cruising these days. I sold my last 4 speed last year and I have four pick-ups with automatics now.

I sure appreciate all the help I get from this website. Great people and great advice!

[OneMoreTime]

Either rent or get buy, borrow or what ever a tranny jack for that job..those things are heavy..

As far as the rest of it you got it..

OMT

[Rob Keller]

Sorry I must have mis read the post{not a morning person}

If you shop @ harbor Freight they have a Tranny adapter for a floor jack that I used on mine

harbor freight

I have the scissor type its OK but not a nice as the
507-5VGA for $53.{this worked sweet}
I want to get the
4075-3VGA for $300.


Rob

[Trucknut]

Got one........thanks again!