Fuzz, Trans mods?

Old Rugged Crosser

Fuzz, what are you using for a trans. I take it that you use your rig for both racing and off road. What mods did you make to your trans. I especially am curious if you are using a TH400. I am getting ready to rebuild my TH400 and would like to get your opinion as to mods to make for both usages. Please try to be explicit in your answers, so I can learn from your experience. :sa:

Blown7

Go the TH400 and never look back.

I did the 34 element intermediate Sprag, Transgo 1-2 kit, Alto 6 clutch Direct and Forward drums,Alto Intermediate Clutches.

I have heard Raybestos 4L80 clutches are the shniznit too

I should have upped the stall on the TC, with 3.73 gears and 35 inch tires and a 2000RPM stall, off idle pickup is a little slow (until the boost builds @2.5K RPM)

Check TH400 mods here.

http://www.yellowbullet.com/forum/forumdisplay.php?f=30

fuzz401

Th-400 2 wheel only ATI center support 34 element sprag manual rev valve body alto clutch plates and steels .050 play in clutch packs 8" 4000 stall ATI converter

fifesjeep

It's cheaper to machine the clutch packs down... Sitting behind my built 360 I'm running a TH350 that I built. I Machined the direct clutch piston to fit the extra friction and steel plate and set it so my total clearance was .045"-.048"... I also upgraded my sprag... I tossed in the extra Hurst hot shift II shift kit and did a few mods to the valve body. (Used tips from Hotrodders.com)... I keep the tranny fluid as cool as possible... so far, no problems and she shifts fast with no hesitations. I normally drop it in 2nd and go from there holding the rpms a little higher before shifting.

Blown7

fifesjeep wrote
It's cheaper to machine the clutch packs down...

Only if you have a Aluminum piston.

fifesjeep

Blown7 wrote
fifesjeep wrote
It's cheaper to machine the clutch packs down...

Only if you have a Aluminum piston.

True... Junk Yard specials are always good for cheap spares... :t:

fuzz401

I just mixed the steel plate sizes to get my clearence

Blown7

fuzz401 wrote
I just mixed the steel plate sizes to get my clearence

Yea that will give you running clearance but if you want to add a extra clutch (from 5 to 6) the piston needs to be faced off to make extra room for the 6 th clutch.

Unless you use the special Alto 6 disc package with the .060" inch steels.

fifesjeep

Blown7 wrote
fuzz401 wrote
I just mixed the steel plate sizes to get my clearence

Yea that will give you running clearance but if you want to add a extra clutch (from 5 to 6) the piston needs to be faced off to make extra room for the 6 th clutch.

Unless you use the special Alto 6 disc package with the .060" inch steels.

I personally like the idea of having the thicker steel plates and machining the clutch pistons for more beef.