I would like to post up my 4l60E build list I have been running in mt Nitrous 1988 Dodge Ram 400+ rwhp running high 12's

This transmission has been getting a workout since the 3600 stall was installed in late 2010..I daily drive this truck so its very important to get a build to hold, last and be streetable

First of Thanks to Dave at YANK converters for talking me into the SSTB3600, I have driven this converter nearly everyday and have towed 5,500lbs with the 3.90 gears to match

While towing with this converter is NOT recommended I have done it several times..I programmed my computer to lockup the converter in 3rd at 30 mph and hold it in the "3" position...at speeds 30-55 this works fine...At speeds above 55 mph its in lockup 4th gear and pulls the load, This might not be acceptable in a smaller cubed motor such as a 4.8 5.3 with a cam. My 1998 LS1 is internally stock with bolt-ons only and has great lowend tq

 

Parts list for this build

-beast sunshell
-wide rear sungear bushing
-new reverse input drum
-alto carbonite standard width 2-4 band
-borg warner dual cage sprag
-wider rear stator support bushing teflon coated
-billet forward piston
-sonnax HD sleeve kit for the input drum
-Raybestos 3-4 z-pack, with 2 extra clutches, .125 backing plate, .060 snapring, clearance set at .050 with longer boost springs for 6,500 + rpm
-high rpm pump spring(important for cammed motors)
-sonnax .490 boost valve
-corvette servo
-billet 4th gear( for towing in OD!!!!)
-transgo separator plate..feed holes drilled...2nd .093 3rd .115-.120 4th .120 lockup feed.055-.070
-aluminum 2nd acc piston
-aluminum forward piston
-slightly stiffer 2nd gear acc spring(DON"T go to stiff)
-servo release checkvalve
-HD 2-3 shift valve (requires valve body drilled)
-NEW EPC solenoid for extra insurance and new electronics depending on budget
-early style forward return cage(stiffer and helps reduce high rpm drag and forward harsh engagement)
-Code 1870 TCC valve fix(converts TCC PWM to full pressure on/off type)

 

And of coarse new overhaul kit that includes gaskets seals clutches steels

 

Computer tuning Is KEY, With this setup I have my requested shift times at .15 for the 1-2 shift .12 for the 2-3 and .15 for the 3-4, all trans pressures are left stock in the tables.

Lockup in 4th comes in at 40 mph and out at 36 mph..In manual "3rd" lockup comes in at 31mph, this is the only reason I can tow with this large of converter without damage

 

If I forgot anything I will update the list

 

IMO, this build is very good for 400-450 rwhp in a truck.....anything more and I would highly recommend billet output and OEM GM 5 pinion front and rear planetaries...STAY AWAY FROM CHEAP 5 pinions

 

Some vids of the trans in work

with 75 shot and Yank sstb 3600


This was BEFORE the YANK converter and nitrous