i need to rebuild my AMC 727. does anyone have any tips to make it live behind a big block? i have read the BB mopar 727s have more disks. does anyone know if i can use that basket in my 727. how about the diesel stuff, can i use any of those internals??

ive got a 727 from behind a diesel its 2wd but yours if you want it worked great when i pulled it 6 months ago. pm me. Im in artesia most wednesdays.

Use Red alto clutches and Kolene steels, 4 pinion planetaries, 5.0 kickdown lever, upgraded strut, a bolt in rear sprag, red alto bands but stay away from rigid bands. in my 727 i used a 5 disc direct drum and a 4 disc rear drum. use a good shift kit and you'll have a neck snapping trans. Also stay away from kevlar stuff, its good stuff but is too harsh for anything but a drag car.

Use Red alto clutches and Kolene steels, 4 pinion planetaries, 5.0 kickdown lever, upgraded strut, a bolt in rear sprag, red alto bands but stay away from rigid bands. in my 727 i used a 5 disc direct drum and a 4 disc rear drum. use a good shift kit and you'll have a neck snapping trans. Also stay away from kevlar stuff, its good stuff but is too harsh for anything but a drag car.

do you have a favorite place to get those parts? maby everything at the same place? i ordered a rebiuld/ shift kit from summit but they sent me the wrong one. maby i will wait to have them send me another one.

I got my stuff from PATC they have good stuff but ive heard the tech support is terrible but i dont know. I cant remember where i got the direct drum but it mightve been A and Reds. Are you rebuilding it yourself of having it done?

i will be doing the work myself. only taken one car to the shop. and never felt good about it

The AMC 727s that I have had apart have a 4 clutch direct drum. It is just fine.

The need for alto reds and kolene steels is debatable. I wouldn't waste my money on them.

I also wouldn't use a 5.0 intermediate lever. You will likely have 2-3 shift overlap with it. The hemi 727s that used this lever had a special intermediate band and direct drum set up to work with the 5.0 lever. Stick with a 3.8 or 4.2 lever.

There is no way that you'll be building a motor for a rock crawler with enough power to kill a stock rebuild tf727 with a good valve body and converter in it. These transmissions will live behind diesels making way more torque than what you're likely looking at with these simple mods.

the red altos and kolenes are not that expensive and they are a nice piece of mind item.

i used the combo i suggested before and although its not in the truck yet we ran it on a trans dyno and never had a problem with it. but my specs in the drum are set to the mininum and it runs type F fluid. and it would jerk the dyno when it would shift. my instructor told me it was the strongest trans hes ever dynoed(spelling?)

Also unless youve built a couple of these id would get a ATSG manual. i got mine from summit. all your hard parts id get from A and Reds.

the difference with the Hemi trans was the drum and band is that the drum and band are a little wider 2.5" compared to 2" but the red alto band makes up for it. also they make a 2 3/16 band that fits the stock drum.

agreed you probably wouldnt need the 5 disc direct clutch i just let him know that its an option.

Also you didnt metion what you plan on doin with the rig. is it a daily driver,trail rig only, rockcrawler or double duty? these transmissons are without a doubt the strongest 3spd ever built.

the difference with the Hemi trans was the drum and band is that the drum and band are a little wider 2.5" compared to 2" but the red alto band makes up for it. also they make a 2 3/16 band that fits the stock drum.

That's not the only difference.

Also you didnt metion what you plan on doin with the rig. is it a daily driver,trail rig only, rockcrawler or double duty? these transmissons are without a doubt the strongest 3spd ever built.

No, they're not.

whats different besides the drum band and kickdown?


and whats stronger in stock form?

whats different besides the drum band and kickdown?

Spring count. It helps delay the application of the direct clutch pack. That's how Chrysler got away with running the 5.0 lever.

and whats stronger in stock form?

Ask anybody making big power with a gas motor and they will tell you that the th400 is hands down the best light duty 3 speed automatic transmission for holding power.

Don't get me wrong, the tf727 is good, but the th400 is better. Heck, my buddy used the same tf727 behind the stroked big block in his race car for 9 years and countless passes down the track with a stock rebuild, good converter, and valve body. He broke the sprag when the rear end let loose. Otherwise it would still be going.

the turbo 400 has way too much drag it costs alot of horsepower. i always thought they were too big and bulky. plus i really dislike the vaccum regulator and the electric kickdown

i forgot about the sring pack being different but in mine there was a plug that you drove into the trans and had an orfice to delay the direct clutch

this will be in a trail rig / crawler. rockwells and 42s = no DD duty. it gets trailered to and from trails.

then id use a full manual valve body