Trutech/Procare Performance Rebuild Kit Alto Red Eagle Level 2.
We are proud to provide only the best parts
to our customers. Our Performance Overhaul Kits are complete with all parts necessary to overhaul and upgrade the clutches and band in
your transmission. We have included parts necessary to restore hydraulic intregrity. Your transmission frictions will be capable of
supporting up to a 550 horsepower engine. To support high horsepower engines gear train
Our kits contain parts that are very important to long clutch life. We include EVERYTHING you need for proper 3-4 setup.:
This is the complete kit with all the parts necessary to upgrade your transmission to support high horsepwer engines
Build it yourself the right way and save money also!
Complete Alto Red Eagle High Performance Friction Kit:
Complete set Kolene steels, ultimate 3-4 setup with .106" steels:
Complete gasket and seal kit:
Wide Alto High Performance Carbon Band:
ACDelco 3-4 Apply and Backing plates for proper 3-4 clearance:
Thin 3-4 snap ring:
ACDelco 3rd accumulator check valve for hydraulic integrity:
Sonnax replacement load release springs:
Quality OEM filter:
This kit is complete with all Alto Red Eagle frictions including a 7 friction setup for the 3-4 clutch and a complete Kolene steel kit
which includes .106" thick 3-4 Kolene steels. Kolene treatment is a thermochemical diffusion process, whereby ferrous parts are processed
in molten salt with a specific nitrogen potential. This process provides a surface treatment that enhances wear and fatigue resistance
from 200% to 500%. Also included in this kit is a complete gasket/seal kit, the apply and backing plate necessary for proper 3-4 clutch
clearance, thin 3-4 clutch snap ring, extra wide Alto carbon 2-4 band, 3rd accumulator check valve, Sonnax load release replacement springs
and OEM filter.
In the 4L60 type transmission the 3-4 clutch is contained in the input drum. The clutch is applied when hydraulic fluid moves the 3-4
piston causing the 3-4 apply ring to engage the clutch. Over the years all these parts have been updated by General Motors. In an automatic
transmission it has been proven if you increase the number of frictions in a clutch set up you
can increase the torque handling capability of that particular clutch. One issue with this theory, to increase the number of frictions
the steels must be thinner to get proper clearance. The 3-4 clutch in this transmission does not work well with thin steels because it
is a shifting clutch and the thin steels have an inability to dissipate heat causing the steels to warp, especially in high performance
applications. General Motors went from a five friction setup in 1982 to a seven friction set up with six .097" thick steels in the later
model 4L65/70E heavy duty transmissions. However, in the standard 4L60/4L65E transmission up to 2010 model year GM used a six friction
setup. This Trutech Performance Module contains the Alto Red Eagle 3-4 seven friction, six .106" thick steel clutch components. These
are the thickest steels available. To install this clutch correctly we have included all the additional factory parts necessary to achieve
proper clutch clearance. All OEM parts included in our Overhaul Module are high quality and meet or exceed factory specification.
At Trutech Performance Transmission we have found the Alto Red Eagle frictions to be an excellent high performance friction. When using a
high performance low slip friction it is necessary to calibrate the shift times to engage the shifting clutches quickly. Because this
is necessary we highly recommend one of our shift modules.
To ensure hydraulic intregrity our Overhaul Module contains one check valve that are very important to 3-4 clutch life. This check valves
is the 3rd accumulator check valve. This valve has a direct effect on 3-4 clutch operation. We include this check valves in all our kits,
we consider this low cost insurance.
In this General Motors transmission bushings play a large part in hydraulic intregrity. In a lot of rebuilds, the bushings are not replaced
if they "look" good. Our recommendation is replace all bushings in your overhaul.
In the 4L60 type transmission the band is applied to move the vehicle forward in the 2nd and 4th gear range. In our High Performance Build
Modules we use the Alto extra wide carbon band with heavy duty anchors. When using this extra wide band we strongly recommend replacing the
reverse input drum to give the band a new wear surface. However, the drum can be reused if it has no signs of wear. Replacing the drum is
always a good idea but not always necessary when using the stock width band. Do not reuse the drum if it is discolored from heat or is
warped in the band apply area.
Combine this kit with one of our shift improvement modules and our geartrain module to give you a strong durable transmission.
If you have any transmission technical questions Contact Us By Email.
This is a free service provided to our customers.
No purchase is required.
All questions will be answered within 24 hours. Thank you for choosing Trutech PerformanceTransmissions.