A little information about PerformaBuilt Transmissions

**performabuilt** · 04-06-2008, 02:40 PM

4l80e Build Part 2

Intermediate clutch installed

Direct clutch drum and Intermediate overun band installed. I have found its easier to install the drum without the clutch set first. Then install the set as shown below

Make the drum easier to hold on to when indexing the Intermediate clutch set to it.

Forward clutch assemby

Forward clutch assembled

Forward clutch installed in case and indexed into the direct clutch, The billet shafts are a tight fit and makes the indexing a little agravating.

Overun and overdrive clutch drum

Overun/overdrive drum with frictions installed

OD assembly ready to install

OD assembly installed into the case.

Installing the Stage 1 overdrive frictions and new steels

OD clutches installed complete.

Close up of billet input shaft from CK PERFORMANCE.

Pump installed

Pump installed with new front seal

**performabuilt** · 04-06-2008, 02:42 PM

Case valve body channels with od and center support bolts installed.

Case VB channels with low/reverse and intermediate overun servos along with check ball installed.

Well thats all I have till tomorrow I will be finishing up then and preparing to dyno . Will post more pics in a couple days

**qwkgto** · 04-12-2008, 04:13 PM

so what power level will this hold,seems my stage 3 4l65e wont hold up so whats this one do?

**performabuilt** · 04-12-2008, 04:25 PM

Well this one comes in two flavors lol the one listed on is rated at 1000 plus rwhp. This one I am going through the build for 1500 plus. But I must tell you putting one of these in a GOAT from what I have gathered is a pain. And the 05-06 computer with these is a major issue also.

**qwkgto** · 04-13-2008, 06:33 AM

so whats a pain about it?do away with tcm and use vac mod..I am so fnin tired of putting in and pulling out the 4l65e

**performabuilt** · 04-13-2008, 08:09 AM

I think your giving the VAC MOD to much credit, It contrary to some peoples understading will not cause the trans to shift it simply replaces the PCS not the TCM, However if you dont mind going full manual valve body then the electronics at least are not and issue, But all auto functions will be lost and you will still need to wire up a way to have lockup.

**qwkgto** · 04-13-2008, 09:27 AM

ok so what do you suggest,I would rather have it controled by tcm,its a street car.

**qwkgto** · 04-14-2008, 06:04 PM

I am the current great lakes record holder will someone make me a deal or sponsor me with a trans that will hold 1000-1200hp? best et on stock ls2 with 12 psi 10.9 at 128mph,i want to put in my new 408 but cant rely on stage 3 4l65e,somebody help me!

**qwkgto** · 11-07-2008, 01:25 PM

update 10.6 at 129 1.64 60ft..with drag radials..

**qwkgto** · 11-07-2008, 01:29 PM

Originally Posted by performabuilt

I think your giving the VAC MOD to much credit, It contrary to some peoples understading will not cause the trans to shift it simply replaces the PCS not the TCM, However if you dont mind going full manual valve body then the electronics at least are not and issue, But all auto functions will be lost and you will still need to wire up a way to have lockup.

why cant i use a aftermarket TCM? I want the auto functions if at all possible...

**performabuilt** · 11-07-2008, 01:44 PM

You can use the after market TCM and by the way we will be calling you monday

**qwkgto** · 11-08-2008, 08:20 AM

Originally Posted by performabuilt

You can use the after market TCM and by the way we will be calling you monday

great cant wait to go faster!

**qwkgto** · 12-02-2008, 02:19 PM

any chance to give me some info on that 4l80?

**NickNuggetZ28** · 04-22-2009, 07:27 PM

The 5th picture shown is a device called a case saver. It replaces the stock anti clunk spring and more evenly distributes shock against the case lugs. This helps to prevent excessive lug wear in the case or breakage of the case or lugs.

That is a badass idea. Plus i can never figure out which way the damn spring goes. I've built about 10+ 4L60Es/700R4s by myself, and my uncle has to show me time and time again. Lol im a dumbass.

But still thats a sweet idea! Do you guys make those yourself or can you buy them?

**performabuilt** · 04-23-2009, 07:09 AM

They are readily available from any trans parts supplier.

**WhatUpWhatUp** · 11-12-2009, 05:24 PM

great info and pics !!

**qwkgto** · 01-28-2010, 03:22 AM

Originally Posted by performabuilt

Well this one comes in two flavors lol the one listed on is rated at 1000 plus rwhp. This one I am going through the build for 1500 plus. But I must tell you putting one of these in a GOAT from what I have gathered is a pain. And the 05-06 computer with these is a major issue also.

lil update,the 4l80e is just as easy to slide in a GTO as the stock trans,you have to have the new converter for the 80,decide if you want to use a manual valve body or a electronic shift,I have a seperate TCM,which is programable and controls the trans shifts.other then the drive shaft and alil mod to the cross member,the 4l80e is a way better choice for us high power guys in the GTO, since its a heavy car it will eat those weak lil 60/65s no matter who build the dam things , anyone lets say above 550hp might as well upgrade to a way better trans,my car went 9.52@144mph,weight with driver 4270lbs, im very happy with both my PERFORMABUILT 4l80e and their customer service,is the shit,Frank will take care of you! I just glad to have a trans I dont need to tear out every 30-50 passes.