I need some insight on a motor swap

[triker97]

No problem...... I just don't see the point to 'hot rod' a Tahoe or Yukon XL.... I am the type to make it efficient and reliable, ..... keep it maintained and it drives pretty good.

The only thing I wish to improve on my Yukon XL is to stiffen up the 'sway' in a turn.

I'm not trying to 'hot rod' persay, but just something that'll make people look at it go "I wasn't expecting that shit" like I said this is my daily driver as well, so I don't want nothin too crazy

 

[mountie]

Around me ( SE Florida)... full size trucks use a Borla muffler to " seem faster".....

 

[iamdub]

man that 4.10 will have nothing on the highway, 3.73 is bad enough all petered out before 100mph, maybe if you have something big enough to get more out of it..
nice light to light but meh....
personal choice I guess, I like a little top end myself

I would disagree about the 3.73.

 

[Doubeleive]

I would disagree about the 3.73.

you have a cam in yours right?

 

[triker97]

Just an overview of mine, sorry if sounds like shit

 

[Fless]

Well the reason I'm looking at new motors is because I believe that the main bearing on my crank is loping, I still have to get a video up but the sound only happens when I take my foot off the gas

You use the word "loping" but do you mean "lobing"? As in an out-of-round crankshaft journal?

SWAG If it's vibration or noise on decel, maybe the harmonic balancer or the rear diff is worn.

 

[triker97]

You use the word "loping" but do you mean "lobing"? As in an out-of-round crankshaft journal?

SWAG If it's vibration or noise on decel, maybe the harmonic balancer or the rear diff is worn.

I do need to change my front main seal and when I do that I am going to be replacing the harmonic balancer it's one of the few pulleys I have yet to replace and yes I did mean lobing, thank you for correcting me. I did post a link to the video I took, I'm not sure how well it'll sound though

 

[Fless]

Well, the camera is all over the place so it's difficult for an old guy like me to follow.

 

[triker97]

Well, the camera is all over the place so it's difficult for an old guy like me to follow.

I apologize sir I was trying to keep my eyes on the road also

 

[Marky Dissod]

4.10 will have nothing on the highway, 3.73 is bad enough all petered out before 100MpH

I would disagree about 3.73.

As would I.
I was once lucky enough to borrow and drive a GMT900 Tahoe Z56 with 4L60E and 4.10.
Engine and transmission were both tuned, but GM OE cam.
It's THE reason why I am so disappointed in mine and want 4.10 axles.