|
GMTH350 TRANSMISSIONS
GMTH350 GENERAL TRANSMISSION INFORMATION
Our research has identified the hard parts and calibration issues that cause transmission failures and corrected them in the form of E4340 steel billet parts and revised hydraulic calibrations.The GM TH350 transmission was standard equiptment in GM medium duty cars, trucks, and vans throughout the 70,s and 80,s.The standard gear ratios are 2.52:1 ,1.52:1 , and 1:1 .It has proven itself to be a reliable performer on the street and dragstrip with the proper modifications. The stock cases will mate to Chevrolet,Buick,Oldsmobile,Pontiac and Cadillac engines.It is available with a 6",9",or 12" extension housing.The 6" is the most common.When ordering be sure to specify the proper extension housing length for your application.We also make custom adapters to use the TH350 behind various Import engines for competition usage .These include the Mazda 13B,Toyota 5MG,and Nissan RB26 engines.Please contact us regarding all custom applications.Be sure to check out our custom gear ratio and lock up torque converter package under “Optional Equipment” .
STAGE 1 TH350 TRANSMISSION
The Stage 1 TH350 transmission is built for engines producing up to 400 foot pounds of torque.
STAGE 2 TH350 TRANSMISSION
The Stage 2 TH350 transmission is built for engines producing up to 750 foot pounds of torque,OR 1200 horsepower/1000 foot pounds of torque if you add our CUSTOM OVERSIZE E4340 STEEL BILLET INPUT SHAFT AND DRUM ASSEMBLY ($329.00),and our CUSTOM E4340 STEEL BILLET OUTPUT SHAFT ($449.00).
STAGE 1 TH350 TRANSMISSION
The Stage 1 TH350 transmission is built for heavy duty towing,street/strip vehicles with engines producing up to 400 foot pounds of torque.Each transmission is professionally assembled and given a thorough road test in our test vehicle to ensure flawless performance prior to shipping.Be sure to check out our custom gear ratio and lock up torque converter package under “Optional Equipment”
COMPETITION COMPONENTS
Heat treated intermediate sprag outer race with spiral lock ring.Heavy duty sun shell.Oversize direct clutch drum bushing.Sun gear with 4 bushings.
CLUTCH AND BAND UPGRADES
5 forward,5 direct,5 lo reverse and 3 intermediate clutches.New intermediate band.
HYDRAULIC UPGRADES
Increased line and lubrication pressures. Dual feed direct clutch triples clutch apply pressure.Custom calibrated valve body and governer assembly.New factory pan and high flow filter
#350-1/MA $849.00
High performance street and strip calibration with manual/automatic valve body.
OPTIONAL EQUIPTMENT
#350-1/LUO Transmission with lock up torque converter $699.00
This option utilizes a torque converter with a lock up clutch.When applied,the clutch eliminates the slippage present in the converters fluid coupling .This allows the flywheel and transmission input shaft to be locked together (rotate at the same rpm)for faster et and mph.
#350GSA 2.70 / 1.52 custom ratio planetary gear set. $449.00
This gear set is used to increase torque multiplication/rotating speed in the transmission in first and second gears. This improves acceleration with heavy vehicles and numerically low final drive ratios. (IE: 3.23, 3.42, 3.73) .
#350CC/DAP Deep aluminum transmission pan $109.00
#350BH S.F.I. approved bell housing installed. $349.00
#350TS S.F.I. approved transmission shield. $139.00
#350DS Filler tube and dipstick with locking cap. $55.00
STAGE 2 TH350 TRANSMISSION
The Stage 2 TH350 transmission is custom built for street/strip and limited drag racing vehicles with engines producing up to 750 foot pounds of torque,OR 1200 horsepower/1000 foot pounds of torque if you add our CUSTOM OVERSIZE E4340 STEEL BILLET INPUT SHAFT AND DRUM ASSEMBLY ($329.00),and our CUSTOM E4340 STEEL BILLET OUTPUT SHAFT ($449.00).Each transmission is professionally assembled and then given a thorough dyno test to ensure flawless performance prior to shipping.Are you tired of intermediate sprag and outer race failures and the maintenance and downtime they cause?The Stage 2 transmission is assembled with our CNC machined unbreakable oversize 36 element sprag and drum assembly to eliminate sprag failures.Be sure to check out our custom gear ratio and lock up torque converter package under “Optional Equipment”.
COMPETITION COMPONENTS
Lightened heavy duty direct clutch drum outfitted with oversize unbreakable 36 element sprag assembly and spiral lock ring.Heat treated intermediate sprag outer race.Heat treated input shaft and drum assembly.Heavy duty sun shell.Oversize direct clutch drum bushing.Sun gear with 4 bushings.Oversize lo roller clutch assembly.Rollerized front and rear planetary gearsets, lo race,sun shell and pump cover.
CLUTCH AND BAND UPGRADES
5 forward,5 direct,5 lo reverse and 3 intermediate red lined clutches.New intermediate band
HYDRAULIC UPGRADES
Increased line and lubriication pressures.Dual feed direct clutch triples clutch apply pressure.Custom calibrated valve body and governer assembly.New factory pan and high flow filter.
#350-2/MA1 $1149.00
High performance street and strip calibration with manual/automatic valve body.
#350-2/FPFM $1299.00 Competition forward pattern full manual valve body.Specify with or without engine braking.
#350-2/RPFM $1499.00
Competition reverse pattern full manual valve body.
#350-2/TB $1549.00
Competition reverse pattern full manual valve body with transmission brake.
OPTIONAL EQUIPTMENT
#350-2/LUO Transmission with lock up torque converter $999.00
This option utilizes a torque converter with a lock up clutch.When applied,the clutch eliminates the slippage present in the converters fluid coupling .This allows the flywheel and transmission input shaft to be locked together (rotate at the same rpm)for faster et and mph.This is a custom multi disk lock up converter
#350GSA 2.70 / 1.52 custom ratio planetary gear set. $449.00
This gear set is used to increase torque multiplication/rotating speed in the transmission in first and second gears. This improves acceleration with heavy vehicles and numerically low final drive ratios. (IE: 3.23, 3.42, 3.73) .
#350BH S.F.I. approved bell housing installed. $349.00
#350TS S.F.I. approved transmission shield. $139.00
#350DS Filler tube and dipstick with locking cap. $55.00
|
|
