Transmission swap to 400 turbo
I am going to swap a 400turbo into my 90 c1500 the tranny ha a ct-69 plate on it. Does that mean it is 1969? And if so will it work in my 1990
My car has 200000 miles.
My car has an automatic transmission.
Experienced mechanics share their insights in answering this question :
The vehicle identification codes on a GM product like the Turbo 400 transmission you’re looking at indicate three things. The GT indicates the application of the transmission; in this case Chevy Truck. The 69 indicates the manufacturing year; 1969 as you’ve guessed. The last numbers will indicate the serial number of production. You might want to have a professional mobile mechanic inspect this transmission to determine if it’s rebuilt and in good condition and if it will work with your 1990 C1500; as without verifying bolt patterns, flywheel and torque converter set up; it’s not possible for us to give you a yes or no answer on whether it will work.
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Obviously the 400 will bolt to the engine and you will need the proper adapter for the transfer case. Most likely you will need to modify the drive shafts.
Moveras – 4L60 – Transmission (Part No.
The TH400 or Turbo 400 is a good transmission that was used in several cars years ago. This popular transmission was found in GM`s cars, as well as, Rolls-Royces, Jeeps, Jaguars, Ferraris, etc.
Oldsmobile and Chevrolet began using the TH-400 in 1965, and a variable-pitch torque converter was added. These units are not the best candidates for exchange. This variable-pitch version of the TH-400 was only used from 1965 to mid-1967. Later units used a fixed-pitch converter.
Much to our surprise, the most significant difference between the TH400 and the 4l60E transmission is the first gear ratio — the 4L60E has a 3.06 first gear, 1.62 second, 1.00 third, and a . 70 overdrive. The TH400 and 4L80E both come with a 2.48 first gear, 1.48 second, and 1.00 third gear.
If your old Chevy came equipped with a two-speed Powerglide, TH350, or TH400, you can bolt the more modern LS up to these factory transmissions. However, one bolt in the bellhousing will not be used on the LS.
The 10L90E is by far the biggest and heaviest modern automatic transmission in GM history, but it`s also the strongest and offers amazing performance and economy when matched with a Gen V LT engine.
The TH700R4 was renamed “4L60” (RPO MD8) following the new General Motors naming convention when the electronic version, 4L60E (RPO M30), was phased in as the 4L60 was being phased out. This happened in 1993 for trucks, vans, and SUVs, and 1994 for rear wheel drive passenger cars.
See all 29 photos29 photos The 700-R4 is at home on the same flexplate as a Turbo 400, which makes this an easy swap. This is the 168-tooth flexplate for both the Turbo 400 and 700-R4 and an 11 1/2-inch bolt-circle torque converter.
They are, for the most part, interchangeable on the same vehicles; however, you would normally find the TH400 in larger engine applications because they are able to function more reliably at higher engine rpms.
if you are talking about a chevy small block 350 (5.7L), the first version created in 1967 made somewhere around 300 hp & 380 lb-ft. when the oil crisis came around, power was dropped down to as low as 145 hp. the engine saw its highest power output with the release of the LT1 V8 which put out 370 hp.
Relevant Questions and Answers :
the most relevant questions and answers related to your specific issue
Turbo VS. Non-Turbo Valve Cover Gasket
Hi there. Looks like the gaskets are the same for the turbo and non turbo engines. I recommend asking the local parts store for to see a valve cover gasket for the non turbo engine and a gasket for a turbo engine and compare the two gaskets. If the gaskets are the same material and have the same design, the go for the valve cover gasket that will fit your budget. If you need further assistance with the valve cover gasket, then seek out a professional, such as one from Your Mechanic, to help you.
can you replace the 700r4 with the turbo 400?
The turbo 400 was used on a lot of trucks with the 5.7 engine and should be bolted up if it came out of an engine with a 5.7 or 5.0 engine. As far as the drive shaft and length of it, or the splines on the output shaft, you will have to measure total transmission front to back and see if they are the same or within a 1/2 inch. The splines would need to be checked with the driveshaft.
As far as the shift linkage and transmission cooler lines, I am not sure what modifications would need to be done to make that fit without seeing the system and part in person. If you need further help, you may want to enlist a certified mechanic who can inspect the car firsthand to determine whether these modifications are feasible.
Transmission swapped and gears don’t work
The 4L60-E should be interchangeable from vehicle to vehicle so this is more likely an electrical issue. Fuses to the powertrain and transfer case shift module need to be checked and any faults should be read out. Also, inspect the wiring to ensure the wiring harnesses have not been pinched. You may want to enlist the help of a mechanic, such as one from YourMechanic, who can survey the faults to diagnose your gear shifting issue.
2013 Ford Focus Transmission Issue. Is it worth keeping the car?
This is a known issue in this generation Ford Focus and some Fiestas with the "Power Shift" transmission and there have been numerous recalls and lawsuits. Although, it is would be difficult to determine how much longer your transmission will last given the fact that you have many new parts, I would not recommend junking the car as it may still provide some valuable life left for you. I would recommend taking it to the dealer to see if these parts may be covered under the recall.
There is automatic transmission fluid in a manual transmission. Is it okay to leave or do I need manual transmission fluid?
This would depend on what the manufacturer recommends. Many manual transmissions do take automatic transmission fluid. If your transmission has ATF in it, it is very likely that it is supposed to have that in there. If not, it is likely that the transmission would not function properly with the wrong fluid. Many manual transmissions will also take engine oil as a lubricant. The best way to know for sure is to check your owner’s manual or call your local General Motors dealership to inquire.
Kia Optima 2004 v6 LX new engine old transmission no problems before with transmission now my transmission is shifting a high rpm
This may be an issue related to the communication of the PCM and the TCM (Transmission control module). As you may know, the TCM relies on the PCM to transmit information related to RPM’s, which the TCM then uses to determine when to direct the transmission to shift. The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function. Other functions controlled by the TCM are components such as a kick down switch, traction control system, and cruise control module. Any of these may also affect the way the transmission control module performs and controls the transmission and the shifting of your vehicle. I would suggest having a professional from Your Mechanic come to your location to properly diagnose your transmission problem.
Transmission fluid comes up out of the transmission vent tube attached to the transmission dipstick tube
Hi there. Fluid seepage out of the vent tube can sometimes be normal, but can also be caused by overfilling. Has a service been performed recently? Perform a fluid level and condition inspection by having the engine at idle, on a level surface, warmed up engine, and remove the dipstick and cleaning it with a shop towel. Reinsert the dipstick and fully remove to a horizontal position for inspection. Make sure the fluid is not milky, very dark, or has contamination. The level should be in the safe zone marked on the stick.
Have an inspection by a qualified technician determine if any problems truly do exist and provide you with some assurance. YourMechanic has several technicians available that can assist you with a transmission leak inspection and can perform a transmission fluid service if needed.
Can too much transmission fluid cause speedometer malfunctions?
Hi there. In most cases when you overfill the transmission fluid it can cause excessive foaming of the fluid or possible internal component failure due to excessive pressure inside the hydraulic lines. Sensors like the speed sensors however are rarely impacted by this situation. However, in regards to the possibility of probability of this; I would say perhaps a 10% chance.