Originally Posted by BlackRamHemi
Time for an update I guess, it's been 6 long months
Shortly after installing my L&M transmission, I lost the OD frictions
(threw code for incorrect gear ratio 4th gear)
Mike couldn't get me his custom trans tuning quick enough due to scheduling conflicts with HHP.
We thought it would be okay to drive for at least a month without tuning,
...but without a quick learn and a new 3000 stall ATS TC, I burnt the OD frictions within two weeks.
Not enough line pressure in the standard tuning to hold the discs from spinning and burning up I guess.
Mike sent me replacements and will step me through the procedures,
But I decided to just park it for the Winter, now that Spring is near it's time to get ready for track season again (opens end of April)
He also sent me a whole set of like-new frictions from one of his cores for my dead stock transmission
...all on his dime, So I'm going to try and use that one as a practice trans.
Stock Frictions/Steels (for under drive and over drive)
^^^^ 2c clutch pack 2 large steels, 2 large frictions
L&M Over Drive uses 12 Red Eagle double sided frictions with more friction area, no steels
( stock OD has just 4 single sided frictions and 4 steels) Clearly not enough for Boosted Rams!
I found an awesome teardown vid on YouTube:
Also grabbed an ATSG manual off ebay:
If all goes well with the stocker
MY buddy Brad (MGRAM-10) and I will drop the L&M trans from my truck the following weekend
swap the new OD frictions in then re-install, along with my new Long Tube Headers.
Trans Re-Build #1 Done!
Piece of Cake!
Drained Trans, Removed all the sensors, then the pan
and left the rear section on, since we don't need access the low/reverse sprag
Valve Body out
1st drum assembly out that houses the OD and UD frictions/steels
Cracked the drum open to pull out the frictions and steels
Burned up Over Drive frictions/steels came out first
Burned up Over Drive frictions/steels came out first.
These are the ones responsible for throwing incorrect ratio codes for 4th and 5th.
Going in for the Under Drive Frictions
Under Drive frictions and steels were flawless
No huge surprise that these were okay because my truck never experienced slip while launching it, even with 8psi Boost and a 3400 stall speed TC.
Next drum to come out holds the 2c frictions and steels,
But first we swapped the replacement OD frictions/steels Mike sent,
Re-installed my good UD frictions/steels and closed up the first drum.
(to minimize the amount of frictions,steels,bearings and snap rings sitting around loose.)
I sent a quick text to Mike to ask if it was still necessary to go onto the next set,
because the U/D frictions looked so clean, He replied right away, Yes 2C can often be the worst
...he was right.
Pulled the 2C frictions/steels, steels were burned up pretty bad, chunks missing out of the frictions in several places
Swapped the ones Mike sent me and re-installed the housing and snap rings
Everything went back in just about as easy as it came out,
Pretty much impossible to do incorrectly because the snap rings wont line up
with the grooves if you got something in the wrong order/position.
Total bench time, not counting a pizza break was probably an hour and a bit.
...and most of that was mopping up fluid and cleaning the old RTV off the pan.
Within the next week or two we'll drop the L&M trans out of my truck
and replace the OD frictions in the first drum assembly.
Filters and Fluid ready to go,
just waiting on my header collector flange/reducers.
Anyone with basic mechanical skills can do this in no time,
Just don't go a dealership parts counter for rebuild parts, they will rape you!
much better source here: http://www.transmissionsone.com/45rf...s_from_pat.htm