Hello my truck is almost stalling if i put in reverse

Thanks for using JustAnswer.com! My name is \*\*\*\*\* \*\*\*\*\* I'll try to answer your car questions. I'll start off with some basic checks to do, then we can get into more advanced diagnostics if needed. Let me know if any questions come up, or if there is anything I can do to help! You can update this message at anytime. - Sorry to hear about any problem with the truck, but would be glad to try and help! - Does the engine try to stall as soon as it's shifted into reverse? With flywheel replacement, this is a manual [transmission](/topics-transmission-ford/), correct? Have seen some clutch issues cause engine to stall, but if only happening while in reverse gear, may need to check internal transmission operation. - If automatic transmission is installed, and engine only stalls in reverse gear, will need to check the transmission/pump for proper fluid pressure output, then see that reveres gear clutch/band and valve body is operating correctly. Check for trouble codes in the transmission computer, and verify proper fluid pressure while in reverse gear. - Lemme know what youre seeing, or if any questions come up while checking things out!