anyone have experience converting a 4l80E to full manual?

At Eds In Joiliet Grumpy.
We have both read that thw 4L808E is good for 800Hp & 800ft/lbs torque.
Not sure if its true.
I would upgrade to All parts that Sonnex & Trans Go has available to fit your budget.
Red Alto Eagle frictions & Kolene Steels for sure.
300M input shaft.
Heavy Duty Sprags.
That eats up $800-900 cash right there likely.
Then the Torque converter.....$1500-2000 or more.
 
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Cheetah Reverse Drag Race shifter is my pick Grumpy.
At 900 + Hp you don't want to miss a Gear.
You recall from Driving Muncie 4-speeds also.
Balls out Flat footed on the gas pedal.
Never lift.
Tap the clutch & grab another gear.
 
Light Switch Method Randy showed is Very Kool Too.
Poor Man's Way I like a lot.
 
This has to be one of the Hardest Financial obstacles to overcome....
For Chevy & Pontiac Guys..
What to do about an Overdrive transmission guaranteed to take a true 500-550 ft/lbs to 2,000 + ft/lbs at the flywheel day in day out for years.
Buy & Build the 4L80E trans.
Buy the Torque converter.
Buy the stand alone ECM.

Talking $3,500-$10,000 cash required.

The only inexpensive way is to run the 4L80E trans Bone stock.
And use the light switch method.
Take your chances as.

Or use a Turbo 400 trans & Muncie 4-speed as I have in my Pontiacs.
 
My '63 GP is the perfect car to test a 4L80 E trans.
If I can find another for $100 or free.
I had 2 RWD 4L80E from Chevy Pickups.
Gave them away. Burnt up dead.
From fleet vehicles I worken on in the past.
The Olds 425 has Super Torque so no high stall required .
Use the Lightswitch method to make shifts.
 
I would need a Trans Adapter plate too.
4L80E is Chevy only Bolt pattern.
Need to adapt to BOP & Caddie V8 bellhousing bolt pattern .
 
http://www.chevrolet.com/performance/transmissions/supermatic-4l85-e.html#transmission

http://www.chevrolet.com/performance/transmissions.html

General Motors 4L80E

‘91 to ‘01 Chevrolet and GMC

4L80E (four-speed)

Screen-Shot-2017-06-05-at-3.48.50-PM.png


Although it’s found primarily in early 6.5L-powered GM trucks, the four-speed, lockup 4L80E automatic wasn’t designed specifically for diesels. Despite this, the 4L80E is still a very strong transmission.

The transmission benefits from a healthy aftermarket thanks to gasoline-powered pickups and can be outfitted with parts and pieces to handle more than 1,000 rwhp – even with the torque of a diesel. If your pockets are deep enough, it’s possible to build a 4L80E transmission using aftermarket parts exclusively. For those who just want something that can handle the power of a hopped-up 6.2L or 6.5L engine (about 200 to 300 hp), a stock rebuild with a shift kit and a performance torque converter is just fine.
 
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SOME related FULL MANUAL CONVERSION INFO
4L80E HARDWARE TORQUE SPECIFICATIONS
GM 4L80E Transmission Torque Specs

DESCRIPTION
NM FT/LB IN/LB
Solenoid to Valve Body Screw 8 - 71
Control Valve Assembly to Case Screw 11 - 97
Oil Test Hole Plug 11 - 97
Fly Wheel Housing Cover to Transmission Screw 7 - 62
Pump body to Cover Screw 24 18 -
Pump Assembly to Case Screw 24 18 -
Rear Servo Cover to Case Screw 24 18 -
Pressure control Solenoid Bracker to Valve Body 8 - 71
Parking Pawl Bracker to Case Screw 24 18 -
Accumulator Housing to Valve Body Screw 11 - 97
Fourth Clutch Screw 16 12 -
Pan to case Screw 24 18 -
Extension Housing to Case Screw 34 25 -
Manual Shaft to Detent Lever Nut 24 18 -
Speed Sensor to Case Screw 11 - 97
Case Center Support Screw 39 29 -
FlyWheel to Converter Screw 44 32 -
Transmission Case to Engine Screw 44 32 -
Cooler Pipe Connector Nut @ Case & Radiator 38 28 -
Valve Body to Case Lube Pipe 11 - 97
Engine Rear Mount to Transmission Bolt 44 32 -
Engine Rear Support Bracket to Frame Nut 44 32 -
Valve Body to Case PSM 11 - 97
Oil Pan Drain Plug 34 25 -
 
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thank you :D
for posting the additional useful info links
I'm trying to collect as much related info and useful tips ,
on the process and suggestions
as I can in this thread
Here is a list that I found posted for the trucks that use the 4L80E forChevy.

AVALANCHE 02-03 4 SP RWD/4X4 V8 8.1L 4L80E

C/K PICK-UP 1500-2500 95-99 4 SP RWD/4X4 V8 5.0L/5.7L/6.0L/7.4L/6.5L DIESEL4L80E 17 BOLT PAN

C/K PICK-UP 1500 00-03 4 SP RWD/4X4 V8 6.0L 4L80E

C/K PICK-UP 2500 00-03 4 SP RWD/4X4 V8 5.7L/6.0L/7.4L/8.1L/6.5 DIESEL4L80E

C/K PICK-UP 3500 95-03 4 SP RWD/4X4 V8 5.0L/5.7L/6.0L/7.4L/8.1L/6.5L DIESEL4L80E 17 BOLTPAN

SUBURBAN 1500-2500 95 4 SP RWD/4X4 V8 7.4L/6.5L DIESEL4L80E

SUBURBAN 1500 96-99 4 SP RWD/4X4 V8 6.5L DIESEL4L80E

SUBURBAN 2500 96-03 4 SP RWD/4X4 V8 5.7L/6.0L/7.4L/8.1L/6.5L DIESEL4L80E

TAHOE/YUKON 95-03 4 SP RWD/4X4 V8 6.0L/8.1L/6.5L DIESEL4L80E

VAN FULL SIZE 2500 96-03 4 SP RWD V6 4.3L V8 4.8L/5.7L/6.0L/8.1L 6.5L DIESEL4L80E 17 BOLT PAN

VAN FULL SIZE 3500 95-03 4 SP RWD V6 4.3L V8 4.8L/5.7L/6.0L/7.4L/8.1L/6.5L DIESEL4L80E17 BOLT PAN
 
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thank you!!
I TRULY APPRECIATE ALL THE HELPFUL RELATED LINKS

tools needed to rebuild a 4l80e transmission listed in the manual

https://www.summitracing.com/parts/...MIt_zev8b92QIVULbACh0EDQEyEAQYBCABEgIOpfD_BwE


https://www.summitracing.com/parts/hup-hd25-1

http://www.jakesperformance.com/trans-compare/

http://transmissionbench.com/4L80Eparts.html

https://transpartsonline.com/TRANS_PARTS_FILE/tpcat.php?TransPartsOnline=4L80&TransPartsType=4L80

http://www.hotrod.com/articles/performance-guide-to-the-gm-4l80e-transmission/

https://www.ebay.com/i/162166383733?chn=ps&dispItem=1
atsg480e.png


transtrength.png

4l80egh.png


https://www.ebay.com/itm/TransGo-4L...ash=item3c904bd814:g:fJYAAOSwBahVb1Wt&vxp=mtr

http://www.monstertransmission.com/All-4L80E-Transmission-Parts_c_5321.html


just a bit of info, if you want a new transmission,core for spare parts,
I called the local "U-PULL-AUTO-PARTS"
and the salvage yard quoted me $220
for ANY AUTO TRANSMISSION I CARE TO PULL
and I asked again, any auto trans regardless of make/model/year?
and was told yes..
but that trans does not come with a warantee its looked at as a core
so Id be looking for a car/truck, source ,that had been in an accident as it had to be running to be driving,
if the car/truck you pull it out of,
is undamaged it MIGHT be in the salvage yard,
because the trans failed.
Id also look to see if theres indications,
the car/truck had been under water or in a fire,
that might have damaged the transmission





j-8763-B case holder tool
j-38655-Holding fixture adapter used with j-8763-B
j-8001-dial indictor set
j-25025-B Dial indictor stand & guide pin set caps
j-38789 -pump removal tool
j-38358-A -forward clutch housing tool
j-38868-A -output shaft assembley remover & installer
j-21363 -lip seal protector
j-35138- universal converter end play checker
j-38729 -over run piston seal protetor
j-21368 -alignment band
j-38693 -oil pump seal installer
j-21370-10 -gauge pin
j-26700-13 -dial indicator base magnet
j-23327 clutch spring compressor
j-25018-A -A/T clutch spring compressor adapter
j-21362 -lip seal protector
j-21409 -lip seal protector
j-23093 -center support alignmet tool
j-38731 -piston seal protector set 3 pieces
j-38732 -forward clutch seal protectors
j-38733-A -direct clutch assembly remover & installer
j-38735 -center support seal installer/sizer
j-38736 -Six piece turbine shaft seal installer/sizer set
j-38737 -band apply pin checking tool. Used with J-21370-10
j-38739 -pump seal installer/sizer


http://www.drivetrain.com/parts_catalog/transmissions_automatics/gm_4l80e_illustration.html

4l80epartill.jpg
 
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I got some leads on Torque converters for 4L80E transmissions for High Hp Boost Drag Racing Grumpy.
A list more than what we had in the past.
I have to go through and read.
From the Guys on Facebook Transmission Group.
Put up a post and they answered.
1000 -2000 Hp range Hi Boost.
It will be likely expensive yet.
But so is Corvette Drag Racing.
 
I watched the guy with the light switches screwed to the dash and I’m not sure I could remember what to flip next! I think I would try micro switches on the shifter. Then it’s like the manual trans with no clutch.
 
 
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