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**tdangle** · 11-21-2020, 01:09 PM

Has anyone been successful in raising the part throttle shift points on their 2004R transplant. I realize it was calibrated for a high rear gear and I have a low gear, 4.10 to be exact. It thinks I'm traveling much faster than I am due to the increased driveshaft speed. The think will go into 4th by 35-40 and doesn't really respond to 50-60% throttle as I would expect. Yes the TV cable is properly adjusted and my understanding is this is not how you set the shift points.

11-21-2020, 01:09 PM	#1
tdangle Senior Member Join Date: Mar 2005 Location: Jurupa Valley, Ca Posts: 1,209	2004R Calibration Has anyone been successful in raising the part throttle shift points on their 2004R transplant. I realize it was calibrated for a high rear gear and I have a low gear, 4.10 to be exact. It thinks I'm traveling much faster than I am due to the increased driveshaft speed. The think will go into 4th by 35-40 and doesn't really respond to 50-60% throttle as I would expect. Yes the TV cable is properly adjusted and my understanding is this is not how you set the shift points. __________________ Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC