can i put a manual transmission from a 1991 chevy 1500 in my truck

ANSWER : If the existing automatic transmission is not working well and needs to be rebuilt you will be vastly better off rebuilding it and keeping the configuration the same. The first headache in changing to a manual will be that the engines that are mated to manual transmissions typically requires a dashpot type device to maintain engine speed during shifts, otherwise speed falls off too quickly as you shift. That will be one issue and will require a lot of research to find and implement a workaround. The other issue is the bell housing from the 1991 has to be compatible with the block. However, if the 1991 also used the 5.7L, based on my quick look the block castings appear to be identical in the two years so the transmission would bolt up. As noted at the outset, generally it is much easier to repair what you have if that is the issue, than try to reconfigure the vehicle different than when it left the factory. If you are interested in a transmission replacement (OEM to OEM), YourMechanic professionals in certain locales can assist with that. Please simply inquire based on your locale. If you have further questions or concerns, do not hesitate to re-contact YourMechanic.

ANSWER : 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.

ANSWER : Hi there. The 4l60e transmission could have two things wrong with it. Either the park arm is not disengaging inside the transmission making the transmission load up but not rotate the drive shaft or the transmission is low on oil. Check the oil on the transmission dip stick and see what the level is. The level must be checked with the engine running. If the oil level is at the full mark, then it is possible that the torque converter may have damaged the pump.

Remove a cooler line and put it into a bucket, and for a brief moment start up the engine and shut it off. If oil sprays out of the cooler line, then the pump is producing pressure. However, if no oil comes out of the cool line, then the pump is not working.

If you need further assistance troubleshooting your transmission, then I recommend having the transmission problem diagnosed by a local expert, such as one from YourMechanic. You will be be able to make a better decision about the car after finding out exactly what’s wrong with it.

ANSWER : Assuming the second transmission actually works, what you are describing points to a fault in engine controls that affect transmission shift points. This would include things like a throttle position sensor, speeds sensors or any vacuum operated controls. However, it is possible, of course, that the second transmission is defective as well. Generally, used transmissions are risky. It is always better to rebuild and thoroughly inspect a transmission before installing it on your vehicle. There are just simply too many unknowns and too many possible things that can go wrong. You can first check for the possibility that there is a problem with the engine controls that affect transmission shifting. If nothing is found, my recommendation would be to rebuild one good copy of the transmission (using all available updates that are out there) and solve the issue that way. It is actually easier to rebuild a transmission than an engine because you do not need any outside machine shop work. Alternatively, if you desire, you can request a transmission diagnostic which would include consideration of possible engine controls issues. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

ANSWER : This sounds like a faulty speed sensor problem. Most cars have two speed sensors (one monitors input shaft and one monitors output shaft) which tell the computer what the gear ratio is of the transmission while in use. If either of these are not working properly, they will cause the computer to shut the car off for safety reasons. I would suggest having an expert from YourMechanic come to your home to diagnose your stalling issuee and help you repair it.

ANSWER : Hi there. In general, Volkswagen transmissions (both automatic and manual) are typically built very well and tend to hold up for extended periods. The key with any transmission is to ensure proper service and maintenance is completed. In regards to the costs of operation, over time the automatic transmission tends to be less expensive. Modern manual transmissions also require routine service, but the most costly repair will be the clutch system; especially if you drive frequently in traffic or city, stop-and-go driving. In the end, both transmissions on these vehicles will have about equal costs of maintenance and repairs – with a slight edge going to the manual for cost-effectiveness. One thing to consider also is fuel economy. The manual transmission tends to get worse fuel economy across the board due to driving style.

ANSWER : You might want to remove both PTOs first. They may be seized or have bad bearings. You may also have burned out the input bearings. The transmission will need to be removed and torn down to see what the damage is to the bearings, gears and synchronizers. I recommend finding a reputable transmission shop to do the job.

ANSWER : It sounds like the radiator replacement did not go according to plan. The transmission fluid is cooled through the radiator as well as the coolant. Often times there are small plastic caps that are inserted into the transmission line connections on a new radiator. If the transmission lines were installed over these plastic caps, the transmission fluid would have been restricted from entering the radiator. This would have caused a pressure build up that likely resulted in the leak you have. I would recommend determining if this plastic cap is still on the radiator first. If so, remove the cap and top off the transmission fluid to resolve this issue.