Thread: Building a trans

So Im picking up a hd trans next week and I figured I would build it to withstand anything and then leave it in the garage untill I do an engine build later on and I honestly have no Idea what I need and what I don't need but heres a basic list that I got, SO any tips or advice let me know

245mm Torque Converter
VIN :
Stall speed:3500
Option 1:no flexplate
Option 2:none selected $389.99 $389.99 Hardened 4th Clutch Shaft
VIN : $69.99 $69.99 Gear ratio conversion kit
VIN :
Size:7/8 inch chain
Model:3.29 gears HD $399.99 $399.99 GM Transmission overhaul kit
VIN : $149.99 $149.99 Steel Channel plate gaskets
VIN : $34.99 $34.99

300M output shaft

Originally Posted by JoshsGTP

300M output shaft

do you really think that is needed?

In talking to Dave and knowing a billiion people on about 6 different forums, going with anything less than a 300m/Intense turbine shaft is throwing money away. The description that a 4340 can hold up to 2-3 times stock power is ZZP poopaganda. Wanna break an input, buy a 4340...they likely break before a stocker. Want a free stocker to break, send me a pm, I have a couple spares.

Andy did a great job going over the basics of the home rebuild. I know it's here somewhere, but I got a sticky on it
BonnevillePRO.com • View topic - Rebuilding a 4T65E-HD

A couple of things you absolutely want:
If you have an engine stand. Make a bracket.



Making sure you space it far enough from the stand so the fwd servo cover clears the stand.

Input shaft resizing sleeve: There's no way around this except sendin the piece to someone that has the tool.


Piston compressor tool: Easy to find on ebay. I found the input/3rd clutch piston required me to add some length. Tractor supply had a piece to lengthen the rod.


Beyond these tools, some freezer zip locks and trans fluid will help get all the seals etc over sharp areas. Some creativity with various tools will drive seals and all that stuff.

Get the ATSG rebuilding book.

My suggestion is to pick up an updated valve body/channel plate from Dave at TEP. It's quick and easy to bolt it on. Comes with all the updates, fresh soleniods and there's almost no worries if that stuff is right.

On parts
Automatically get the hardened 4th shaft
If you want a big build, get a 7/8" chain gearset, otherwise get fresh chains (all are V8 these days)
Updated VB
Bearings in Channel plate
While you have sent the VB/Channel plate to Dave, send him the spacer plate and ask him to hook that up as well. (Better feeding of clutch pistons)
New stator bearing (known to cause whine noise)
Any galled parts shoudl be replaced (typically sun gear in diff)
Input shaft as mentioned 300m or Turbine shaft
Talk to Dave about adding clutches/steels to reduce slop in 2nd and 3rd packs.
Clutches are highly dependent on who you talk to. I like to talk this over with Dave as well. He knows which clutches grab better under which circumstances. There's a difference...no doubt.
Transgo shift kit.

Poof, you basically have yourself a full on big baller transmission. Buy a pile of brake clean, a ton of oil absorbant, have a nice big table and a ton of clean rags. ...on an a lot of time. first time out ...it's a slow process.

thanks bill you always have the answers I need

Keep asking in depth questions and one day you'll stump me.

I'm still waiting in the stump Bill thread for someone to post some cool bolts and crap.

Originally Posted by BillBoost37

Keep asking in depth questions and one day you'll stump me.

I'm still waiting in the stump Bill thread for someone to post some cool bolts and crap.

ha Give me 5 mins and ill get you lol gotta go to the garge and get a picture of these it will blow your mind

bill you should send me that bracket you made...

sorry it took me awhile to update this went to a regatta this past weenkend we took 2nd over all so thats good but anyway....

I picked up this trans and Have it unloaded and into the cart so I'll probally start on it tomorrow I'll atleast clean th outside of it up cause its greasy but I'll post some pics up so you guy can get an Idea at what I got

I already noticed this thing is missing like more than half of the pan bolts...

Pan bolts from 440 to 60 and the first year of 65 are all the same and then 98+ 65 bolts stay the same til infinity. If you need a few bolts. Say the work and pm me an addy.

Two of my parts cases are dedicated transmission.

BTW, pressure washer before you open it up with a covered input shaft and geing nice near the hose connections works like a champ.

I just used degreaser and then brake cleaner

So yea I think someone got the best of me

That sucks.

Was that supposed to be a good trans or a core/dead one?

There is a gear inside of those four planetaries. It's called the Sun input Gear. Did you get a picture of it's orientation before it came out of the diff? If that's put in tackwards, it'll fit and feel fine..but yeah..carnage like that happens.

everything spun fine and yea I did get a pic I will upload it but does this mean I got to buy a whole new diff?

http://e-transcontrol.com/fwd%20lsd.htm

yea well I guess I'm just going to get a limited slip now lol there goes abunch of money..

I'll try to have my trans pulled asap and i'll let you know what the insides look like.