4l80e conversion.

Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: 4l80e conversion.

Do not... I repeat, DO NOT... install the trans and transfer case as one unit without removing the rear crossmember or at least notching it.

It goes in ok but will it come out? Will it f***.
 
D

denny

Active member
Re: 4l80e conversion.

I am back up and running, its no fun removing and installing a 4l80 alone with jackstands.

now have
Speedinc transfercase inputshaft
PTC converter rebuild by ProTorque
4l80e overhaul by ckperformance with billetinput shaft.
 
MRKING

MRKING

New Parts for Old Trucks
Re: 4l80e conversion.

For any future searches where this may be stumbled upon , most of the old prime gears forum can be found on the way back machine . The tech data was helpful for specific syty and 80e questions .

http://web.archive.org/web/20081001.../forums/forumdisplay.php?f=66#goto_forumtools
http://web.archive.org/web/20080913...orums/forumdisplay.php?f=66&order=desc&page=2
http://web.archive.org/web/20080913...orums/forumdisplay.php?f=66&order=desc&page=3

It is hit or miss at times , but eventually it does come up .
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: 4l80e conversion.

Looks like I got bitten by Blake as well:

null_zps00844f81.jpg


:tdown:
 
autoaddictions

autoaddictions

Active member
Re: 4l80e conversion.

Now you have me wondering. I have gone low 10s on a PG 4l80. Defenatly have the most passes. 300 plus. I have never had a failure. But I pulling the trans for a refresh and I too have the 27 spline conversion. I was told it was a hardend shaft. I'll post up what I find. I suspect mine is bent.
 
D

denny

Active member
Re: 4l80e conversion.

Its never ends for me.

protorque.com rebuild my PTC coverter , after a few test drives and the lockup clutch is burnt again.
 
D

denny

Active member
Re: 4l80e conversion.

BTW- with the twisted output shaft I use to get a humming noise over 100 mph.
 
Z SKI

Z SKI

Donating Member
Re: 4l80e conversion.

autoaddictions said:
Now you have me wondering. I have gone low 10s on a PG 4l80. Defenatly have the most passes. 300 plus. I have never had a failure. But I pulling the trans for a refresh and I too have the 27 spline conversion. I was told it was a hardend shaft. I'll post up what I find. I suspect mine is bent.
Click to expand...

Make sure you have all of your billet parts that you paid for... I was one out of three... Best luck to you. Please post what billet hard parts you find... It would he nice to know due to you running super low 10's..
 
C

Captain Morgan

Moderated User
Re: 4l80e conversion.

denny said:
Its never ends for me.

protorque.com rebuild my PTC coverter , after a few test drives and the lockup clutch is burnt again.
Click to expand...

soooooo, don't buy a PTC converter, check. :tup::rotf:

I have a ProTorque in my Ty now, but I know Harmon and a few others are running Circle D converters, guess Ill figure out what to go with when I get to that point.
 
autoaddictions

autoaddictions

Active member
Re: 4l80e conversion.

I run a Circle D billet! No problems Just Saying Then Again I have used pro torques also in other cars. None with lock up..
 
e95 Ty

e95 Ty

New member
Re: 4l80e conversion.

Billet Circle D here as well. Chris is great to deal with and has custom built quite a few SyTy converters.....
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: 4l80e conversion.

I'm waiting for payday this month but will be ordering a Circle D Pro III 2B 258mm converter on 1 Nov. 3000 stall with a free rebuild/restall in first year.

He's fantastic to deal with.
 
D

denny

Active member
Re: 4l80e conversion.

Quickstop [UK] said:
I'm waiting for payday this month but will be ordering a Circle D Pro III 2B 258mm converter on 1 Nov. 3000 stall with a free rebuild/restall in first year.

He's fantastic to deal with.
Click to expand...


I will probably get this same with 3200 stall, I am waiting on Santa for the $1100.
 
Quickstop [UK]

Quickstop [UK]

Combating adversyty.
Re: 4l80e conversion.

I worked out today how much I have spent dealing with this 80e conversion. It's not a nice number at all.

Sorry Denny - seems like we're both having a crap time with these transmissions and converters!!
 
D

denny

Active member
Re: 4l80e conversion.

I spent around 7k the first time, another $1800 in the last 2 months and will be another $1200 in the next two months for a new converter.

I thought when you go with a 4l80e all your transmission wories are over.
 
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