Mild Street Performance - $1095.00

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.