4l60e forward sprag installed backwards. With the sprag in backwards, you're using the over-run clutches to go forward, instead of the forward clutches. '02 2500HD Duramax, CCSB Super Duty Dana 60 Radius Arms & Coilovers '86 M1008 6BT, NV4500, NP205 Tons, lockers, and hydro assist '99 Silverado Mildly built 6. Finally gave up and had a 4L80e built by a local trans shop with a very good reputation for performance transmissions. Came in with smoked 3/4 clutch pack, rebuilt with normal Mar 7, 2020 · 4L60E's can live at that power level if built right. Replacing a crunched one and have seen many issues with them being reversed. Been rebuilt 3 times. I have a 4L80E that will see 1200 rwhp already built with the much needed help from Chris in a different car. The rear shaft and sun shell will only spin in one direction. Is Nov 15, 2015 · If you put it in gear and it feels like doing a brake stand then the forward Sprag was put together backwards I've done that before. more Mar 18, 2013 · How can we definitively know how to correctly install the sprag in a 4l60e. 0 5 speed, tons and lockers Jan 30, 2024 · Hey Everyone, Starting a similar thread to the one created for the 6L80 but dedicated to the 4L60E as countless GM cars, trucks and SUVs were fitted w/them from 1993-2013/14 and often retro-swapped into older GM vehicles that members may own. Extremely harsh shifts from P or N, normal shifts at WOT Electronic Pressure Control (EPC (Electronic Pressure Control) solenoid failed. I would start by making sure the shift lever is in its respective gear according to the shifter/display. Mar 17, 2011 · No forward movement in OD or D, but L2, L1 and R work Forward sprag is broken. Here's one quick and easy method: Remove the turbine shaft seal ring sizer, then lower the input drum into the case without the reverse input drum, engaging the sun gear splines with the forward sprag, and the 3-4 clutches with the front ring gear. The 4L60e keeps losing 2nd and 3rd gears. Jul 15, 2018 · C4 Tech/Performance - 4l60e rebuild question for experts - I'm rebuilding a 4l60e and have installed the reverse clutches, the planetary gear and rear shaft. Oct 10, 2011 · This is why a 4L60E will move forward, if the sprag is misassembled, in manual 3rd, and a 700 has to be pulled to manual 2nd. The assembly only spins clockwise now. Installed the 4L80e with new 3500 stall convertor. May 27, 2025 · PFA - experiencing a problem with my last 4L60E rebuild (2004) that I’ve never seen before. If I try spinning it backwards it is completely locked. Easy fix in pan. If you do some searching regarding May 21, 2020 · I had to split the Input housing into two separate videos, so in this one, we install the clutches and take are measurements for clearancesOn Facebook at Fresh 4L80e no forward gears We have a 1967 Camaro with a LS3 (500whp) and a 4L60e. Videos include teardown and inspection, which. Any Nov 15, 2015 · If you put it in gear and it feels like doing a brake stand then the forward Sprag was put together backwards I've done that before. Remove & replace or rebuild Try not to run or drive the car or further damage could result. I can see that as an easy mistake to make. If you put it in gear and the engine revs like it's in neutral then you would be looking at a forward clutch problem. Feb 25, 2013 · I believe i put the input sprag in backwards. The kit came with both sprags. I show you correct rotation for the forward sprag and low roller one-way clutch assemblies in a 700R4 and 4L60E transmission. oke pcb hdb lqm oei efc wps qbg vhi wme zzg oss zgc uyh uua