|
|
|
|
 |
|
|
Mild Street Performance - $995.00
We
consider our level one transmission to be a precision remanufactured
transmission with "fix-it" upgrades only. These transmissions
are upgraded in those areas that will cure the common problems that
have plagued these units over the years. During this process, we also
improve the shift timing and feel for cleaner slightly firmer shifts.
These are great units for stock or lightly modified cars or trucks
that are in need of a new transmission. Our Level One transmission
would be what you would expect from a local transmission shop who
was asked to "rebuild" your transnmission and install a
kit to improve the shift timing and feel but they would do so without
our precision machining. This is because very few shops have the
specialized equipment needed to perform these precision operations.
This is also what most of the "big" names in this business
call their performance street level transmission*.
These
make great inexpensive transmissions to install into mild street rods,
relatively stock cars and trucks up to 350 hp.
*Please don't take
our word on this, we encourage you to do a direct comparison of features,
go to the big name company web sites and read their own descriptions
of what they offer. Please note their transmission sell for $400.00
to $700.00 more!
Our Th-700R4
level one transmissions feature: |
· We start with
a selected 1988 to 1993 General Motors Th-700R4 4 speed automatic
core. These cores all have the 30 spline input shaft, V-8 case. We
completely disassemble and inspect all parts. Our cases and tail housings
are put through a seven step refurbishing and cleaning process. When
completed, this process leaves the case with a beautiful semi polished
natural aluminum finish. Have you ever wondered why re-manufactured
transmissions are always painted? We clean and refurbish our cases
so thoroughly we don't need to paint them.
· Like
the heart in your body, the transmissions internal hydraulic pump
is critical to proper operation and longevity. Both sides of the pump
housing are precision machined in every transmission we build, regardless
of the performance level. Heat, pressure and age cause these aluminum
pump halves to warp. This time consuming operation is an extremely
important step that completely eliminates the cross flow problems
common to these aluminum housings. This machining operation is performed
in our machine shop on our CNC Haas Lathe which produces repeatability
within .0005". Diamond tooling is used during this process which
leaves produces precision mating surfaces with a superb finish. We
install a new high performance 10 vane pump rotor, new guide rings
and new vanes in every pump we build. Our Level one units all recieve a .470"
main boost valve plus a larger low/reverse boost valve. A Teflon coated
front bushing is installed as are new stator support bushings. A higher
rate pressure regulator spring is added and the pump regulator valve
is modified for improved flow.
· New heavy duty
28 element sprag clutch
· One piece seals
are used at all locations throughout the transmission.
· Premium quality
aftermarket clutch friction's are installed in all
clutch packs.
· We use a premium quality
aftermarket 2-4 band with a reinforced anchor.
· Precision refinished
low reverse drum with extra width bushings.
· New thrust roller
bearings are used throughout.
· New premium aftermarket
double lip seals front and rear.
· High temperature
center seal.
· Re-calibrated spacer
plate for improved shift timing and firmness.
· Precision calibration
(blueprinting) of the Part throttle/ TV valve circuits in the valve
body. This step is necessary for precise pressure regulation and proper
shift timing. Without this set, custom transmission installations
are almost impossible to get to produce proper shift timing and feel
when setting up a custom TV cable link to an aftermarket carburetor
or fuel injection.
· Modified accumulators
for slightly shorter, cleaner and firmer shifts.
· New filter and
breather and gaskets.
· New TCC clutch
solenoid.
· All transmissions
are not only static pressure tested during assembly, but actually
installed and ran in a vehicle to be absolutely positive they
not only perform the correct functions but "feel" correct.
Feel is not something that can be determined on a test stand or dynamometer.
|
|
