4.10s + trutrac in , don't feel "huge" difference
#22
12 Second Truck Club
iTrader: (13)
i've done the 3.42 to 4.10 swap multiple times and i dont ever feel a huge difference, at some speeds my 3.42s felt stronger... one thing thats weird is my truck would spin alot more with the 3.42s then with the 4.10s? i think the 3.42s would put me in lower rpm where the torques at and 4.10s just fly up to higher rpms where theirs more HP.
#28
TECH Fanatic
Join Date: Oct 2005
Location: Woodstock Ontario Canada
Posts: 1,379
Likes: 0
Received 0 Likes
on
0 Posts
I went from 3.08's to 4.10's, I was expecting a night and day difference, but there wasnt. Sure I could tell the difference, but it wasnt crazy all over the road that I thought if would be.
2-3 tenths in the 1/4.
Acceleration in the cab, is very subjective. Some people over exagerate as well.
peace
Hog
2-3 tenths in the 1/4.
Acceleration in the cab, is very subjective. Some people over exagerate as well.
peace
Hog
#29
TECH Fanatic
Join Date: Oct 2005
Location: Woodstock Ontario Canada
Posts: 1,379
Likes: 0
Received 0 Likes
on
0 Posts
I think its easy to over gear with stock cams and the low 1st gears the 60e's have.
Its like the engine just blows through the torque band and into the powerband, esp on the older engines like mine.
OR the lower gears like 3.73's 4.10's might put less load on the TC causing it to stall slightly lower, than say a higher 3.23 gear.
Mine 4.10's spun way worse than the 3.08's.
peace
Hog
Its like the engine just blows through the torque band and into the powerband, esp on the older engines like mine.
OR the lower gears like 3.73's 4.10's might put less load on the TC causing it to stall slightly lower, than say a higher 3.23 gear.
Mine 4.10's spun way worse than the 3.08's.
peace
Hog
#30
Drove it around a little more, nothing over 2500 rpm though as I'm still breaking in the gears (although I've read AAM gears are already heat treated to 1500 degrees from the factory as a break in). The best way I can describe the 4.10s is that the truck feels lighter. It's not the "direct" gain in low end that I would thought it would be. Oh well. On a positive note, driving around in the snow here I can already tell the Trutrac is far superior to the G80.