With my LS engine out for repair, now is the time to address my tranny.
I have a 2004 R Heavy Duty with stock 78 rear end 3:08. Currently have the stock 255/60/15 tires, but planning on 17's in the future.
Transmission never seems to really engage in first. I have adjusted the TV cable to where the pressures look correct in each gear. The shifts seemed to be solid both up and down. Took the tranny to a reputable Tranny Shop that is familiar with these older units. He said he our check it out but suggested that I really should change the rear gearing to either 3:73 or 4:11. Or change to a different transmission but that involves changing crossmember and drive shaft.
Here is the gearing for the 2004 R. 2.74 1.57 1.00 0.67.
I am not planning on any strip, but would like to spin the tires occasionally and have the engine run around 2000 RPM at 70 mph. With that info how do you chose a rear end gear?
I have a 2004 R Heavy Duty with stock 78 rear end 3:08. Currently have the stock 255/60/15 tires, but planning on 17's in the future.
Transmission never seems to really engage in first. I have adjusted the TV cable to where the pressures look correct in each gear. The shifts seemed to be solid both up and down. Took the tranny to a reputable Tranny Shop that is familiar with these older units. He said he our check it out but suggested that I really should change the rear gearing to either 3:73 or 4:11. Or change to a different transmission but that involves changing crossmember and drive shaft.
Here is the gearing for the 2004 R. 2.74 1.57 1.00 0.67.
I am not planning on any strip, but would like to spin the tires occasionally and have the engine run around 2000 RPM at 70 mph. With that info how do you chose a rear end gear?