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Discussion Starter #1
Just got a new to me 2010 Silverado with the 4.8. I plan on lifting it with zone 6.5 lift on 35's eventually. My question is would It be better to keep the 4.8, regear it to a 4.56 or even a 4.88 and throw the lift and tires on? or to swap a 6.0, keep the 3.42 gears and lift it with 35's? I figure the lift and tires will run me around 3k with the gears being another 1k to 1500. so 4500 for that. Or spend the 3k on lift and tires and then find a nice used 6.0. I figure they will be about the same price but correct me if i'm wrong. I plan on keeping the truck a long time but it has 137,000 miles so I could regear and then run the motor until it goes but would I need to re gear again to accomodate for the 6.0 when i do the swap?

P.S. I got the truck for a hell of a deal so it doesn't bother me to dump some money in it. It's a 4x4
 

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Keep the 4.8 and regear. Even with the 6.0 you will still want at least 4.56 gears. I say go 4.56, unless you plan on going bigger than 35's in the future. Then if it still isn't enough for you, swap in a 6.0 down the road.
 

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00silvy
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Would regear to 4:88s or 4:56s. If that's not enough for u I'd then motor swap.
 

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Discussion Starter #6
Getting some good advice here. I'm leaning towards just doing the re-gear and running it until the motor shits the bed but I would love to throw the 6.0 under the hood. If I go with the 4.56 gears now and motor swap a couple years down the road, will the 4.56 be alright? Does it make a difference I have the 4 speed and not the 6 speed?
 

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00silvy
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Getting some good advice here. I'm leaning towards just doing the re-gear and running it until the motor shits the bed but I would love to throw the 6.0 under the hood. If I go with the 4.56 gears now and motor swap a couple years down the road, will the 4.56 be alright? Does it make a difference I have the 4 speed and not the 6 speed?
4:56 will be fine with both motors. The RPMs will be down a couple hundred less in a 6.0l than the 4.8l at the same speed though.
 

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definitely regear first cause doesn't matter what motor you have a set of gears will really save your trans with 35"s
 

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HABS SUCK!!
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gears, don't swap motors till the 4.8 pops, if it does
 

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As everyone else has already said, gears now and swap the motor later.
 

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GMFS Enforcer
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The RPMs will be down a couple hundred less in a 6.0l than the 4.8l at the same speed though.
How is that? 4.8, 5.3, 6.0, 8.1.... all will turn the same RPM at given vehicle speed if nothing else changed.
 

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00silvy
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How is that? 4.8, 5.3, 6.0, 8.1.... all will turn the same RPM at given vehicle speed if nothing else changed.
My 5.3l turned about 2000-2100 RPM on flat ground at 70mph. My 6.0l in the same truck turns about 1800 RPM on flat ground at 70mph.
 

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Discussion Starter #14
Can someone do a not so conservative estimate of total costs for 7" fts lift, re-gearing to 4.56, 35" tires and wheels and miscellaneous costs? This is the first truck I've owned that I'm lifting so it's all new to me. Also plan on Blackbear autocal.

Lift = $1700
Wheels + Tires = 1000+1200 = $2200 Dropstars 20x10 with 35" Toyo M/T
4.56 Gears Installed = $1500
Blackbear Tune = $600
Misc. = 1000

Total = $7000

Does $7000 seem right for all the work involved? Jesus Christ I better get back to work
 

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Discussion Starter #16
aaaslayer sounds like you have already done most of the stuff I plan on doing by looking at your sig. How do you like the setup? Are you happy with the 4.56 gears? would you go 4.88 if you did it again? And how did the -44 motos fit? any trimming? Im looking at -19 offset with 4.75" backspace
 

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My 5.3l turned about 2000-2100 RPM on flat ground at 70mph. My 6.0l in the same truck turns about 1800 RPM on flat ground at 70mph.
Makes no sense unless the TC was unlocked with the 5.3, or your speedo was off.
 

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My 5.3l turned about 2000-2100 RPM on flat ground at 70mph. My 6.0l in the same truck turns about 1800 RPM on flat ground at 70mph.
Dude, I don't think that is possible......I'm not 100% certain but I'm pretty sure that is impossible. If it is possible can some one ed Jah ma cate me
 
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