Where does the lube go in the 4l80e-97?
4L80E – 97 and Later Models Center Support/Shim/Sun Shaft (99up Models) The 2nd design sun gear has 4 deep notches (and small hole between gears) for lube to flow from the sun shaft, into the sun gear, and on to the planets. The 1st design sun gear has 2 small/shallow notches and a large hole between gears for lube to flow to planets.
How does the 99up model 4l80e-97 work?
Center Support The 99up model 4L80E’s have a different center support, planetary carriers, sun shaft, and also use a new shim under the rear bearing. The new planets have slight longer gear teeth (.075”) than previ- ous design, and the changes described on this page were required to “re-center” the geartrain.
What kind of trans does a 4L80E have?
Trans Basic Operation: The 4L80E is a RWD 4 speed unit with TCC. Shift delay, shift feel, and TCC are all electronically controlled by TCM through the use of solenoids mounted on the valve body. Originally designated the 4L80E, other similar model variations are designated as 4L80E-HD, and 4L85E.
Which is not present in the 4L80E clutch?
not present O Overdrive Clutch O Overrun Clutch O Low/Reverse Band L Low Roller S Park O Reverse Applied O Neutral O
Which is better TH400 or 4L80E transmission?
The 4L80E is a descendent of the proven TH400 transmission design. It is very rugged, has much more potential for power capacity than any other overdrive transmission on the market. It has better power flow for big power applications, much more clutch capacity and apply area than the 4L60E.
How much horsepower does a 4L80E engine have?
Above this point the direct clutches will not live long without some hydraulic improvements. Using our modifications or some valve body kits, the direct clutch issues are resolved and the 4L80E will generally be reliable up to the 750 HP/TQ range unless it’s a very heavy combination (over 4500 lbs) or using nitrous.
4L80E – 97 and Later Models Center Support/Shim/Sun Shaft (99up Models) The 2nd design sun gear has 4 deep notches (and small hole between gears) for lube to flow from the sun shaft, into the sun gear, and on to the planets. The 1st design sun gear has 2 small/shallow notches and a large hole between gears for lube to flow to planets.
Center Support The 99up model 4L80E’s have a different center support, planetary carriers, sun shaft, and also use a new shim under the rear bearing. The new planets have slight longer gear teeth (.075”) than previ- ous design, and the changes described on this page were required to “re-center” the geartrain.