Adjust the TV cable,
I found after getting my 5.9 that you cant compare a 4.0 to a V8 the shift points are very much different. The V8's shift sooner the I6 shifts later. My 5.9 shifts around 1700-2100 rpm, the 4.0 is around 2000-2500 rpm. Torque converter on the 4.0 locks at 50mph, the 5.9 its at 40mph, and on the 5.9 1-3 gears shift quickly between 3 or so seconds of each other and then it stays in 3rd until you get up to 35mph for overdrive
2013 6.2 V8 Camaro SS 3,000 miles :-)
1998 5.9 V8 Limited Platinum ZJ 151,xxx miles
1998 4.0 I6 Laredo ZJ 207,xxx miles Yay !