To (re)build a 2004r?
Le Mans Master
Joined: Jan 2001
Posts: 6,743
Likes: 1,385
Many thanks for that 
Le Mans Master
Joined: Dec 2007
Posts: 6,422
Likes: 591
From: McHenry Illinois
Right or wrong, I'm not sure, but I did it and it worked. I can't remember if I was able to repair the other planetaries or not, it's been a few years. I'd say if you can get them apart without damaging the carrier or bearings you're golden.
Intermediate
Joined: Oct 2020
Posts: 42
Likes: 8
From some research Ive done today the 86 and newer 2004r stock transmissions can handle 300hp stock with no mods. They are supposedly good to 400hp in normal use and if drag racing they are supposedly only good for like 300-350hp... I'm sure this opinion varies but thats what google states.
Safety Car
Joined: Jan 2009
Posts: 3,873
Likes: 25
Your going to love your thc2004r.
Close ratio 4-speed.
All the gear ratios are spaced evenly, unlike the 700's.
Add a toggle switch for lockup.
Now you have a 5-speed.........
Change the rear gears to 3.73's so you can use 4th and 5th as god intended.
Throw the trans in the car. You'll cut the trans mount to fit, but thats about it.
Save the cash to pay the dana 44 ratio change out.
From your closeup pics, your in good shape so far. Will go many miles on a 3000lbs car
w/o race tires.
w/o race tires.
w/o race tires...........
Close ratio 4-speed.
All the gear ratios are spaced evenly, unlike the 700's.
Add a toggle switch for lockup.
Now you have a 5-speed.........
Change the rear gears to 3.73's so you can use 4th and 5th as god intended.
Throw the trans in the car. You'll cut the trans mount to fit, but thats about it.
Save the cash to pay the dana 44 ratio change out.
From your closeup pics, your in good shape so far. Will go many miles on a 3000lbs car
w/o race tires.
w/o race tires.
w/o race tires...........
