Duramax Diesels Forum Truck of the Week
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Old 02-17-2018, 08:38 PM
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Default Lift kit questions

Just trying to get a feel of lifts out there. Not doing one until my truck is mechanically sound. I was looking into around an 8" lift with 37's, but I kept reading something needed to be trimmed. Who has a 8" lift that could give me the pros and cons? I plan on using my truck off-road a lot and I'm not easy on it.lol I've been looking at the bulletproof lifts.

Also was thinking about the 10-12" lift from them, but not sure how much extra I'll have to spend to complete the lift. I'm sure drive lines need to be lengthened, possibly extra frame support, etc. I still want the option to be able to tow and use it as a truck somewhat. What you guys think? Any advice is welcome.
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Old 02-17-2018, 08:47 PM
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No way you’re gonna be able to use 8 or more inches of lift as a truck. Trust me. My k10 is 4 inches and 35s and it sucks lifting anything into the bed. Now when it had 12 inches of lift and 39.5s. Forget it. Useless. But looks cool. You want useful and a good lift, go cognito or something similar.
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Old 02-17-2018, 10:02 PM
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Zach, let James or Russ answer this one. They're the resident experts on lifts.
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Old 02-18-2018, 06:53 AM
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It depends on the look you like. I like a stuffed look so I would run 37s with a 6" and trim some. You would tower over 37s with a 10-12.

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Old 02-18-2018, 07:10 AM
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Zack must have short guy problems

I highly prefer knuckle drop lifts over lifts that drop the stock UCA. They are a stronger setup for off road. As far as the best lift to hold up off road, buy a cognito lift. They make a 7-9Ē lift or a 10-12Ē. Iíd stick with the 7-9 and 37s to help front end parts live off road. Iíve been on an 8Ē fabtech lift and 37s since 2006. Would not recommend their lift but Iíve used this truck for off roading, race truck chasing, towing, hauling, dd work and so on. Been through many steering parts and front end parts. Make sure you upgrade that steering when you do the lift so it stays together the longest and holds up in 4wd
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Old 02-18-2018, 07:18 AM
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Quote:
Originally Posted by Chevy1925 View Post
Zack must have short guy problems

I highly prefer knuckle drop lifts over lifts that drop the stock UCA. They are a stronger setup for off road. As far as the best lift to hold up off road, buy a cognito lift. They make a 7-9” lift or a 10-12”. I’d stick with the 7-9 and 37s to help front end parts live off road. I’ve been on an 8” fabtech lift and 37s since 2006. Would not recommend their lift but I’ve used this truck for off roading, race truck chasing, towing, hauling, dd work and so on. Been through many steering parts and front end parts. Make sure you upgrade that steering when you do the lift so it stays together the longest and holds up in 4wd
Jeeze James I’m almost 6’ lol I just meant lifting anything heavy into the bed from the ground alone can be a pain. The top of my k10 was 8’ tall. Talk about fun to drive but not to use lol and even with it lowered its spooky loading a bike or 4wheeler in the back with ramps. Just my .02. Tho I may be getting a 7.3 with 8 inches of lift soon imma hypocrite.
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Without a duramax... hopefully not for long.

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2011 Yamaha YFZ450X
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2003 Kawasaki Z1000
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Old 02-18-2018, 07:31 AM
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Quote:
Originally Posted by zakkb787 View Post
Jeeze James Iím almost 6í lol I just meant lifting anything heavy into the bed from the ground alone can be a pain. The top of my k10 was 8í tall. Talk about fun to drive but not to use lol and even with it lowered its spooky loading a bike or 4wheeler in the back with ramps. Just my .02. Tho I may be getting a 7.3 with 8 inches of lift soon imma hypocrite.


Oh suck it up buttercup . It really, Iíve loaded bikes, quads, my old rzr s, bags of sand, large rocks, take my fifth wheel hitch out and put in, and all kinds of other stuff while itís lifted.

My dads 15.5 is 2Ē shorter bed rail height from the ground but his bed floor is lower from the top of the rail. Makes it like a lifted truck to get things in and out unless the tail gate is down.
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02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
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Old 02-18-2018, 07:50 AM
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Quote:
Originally Posted by Chevy1925 View Post
Oh suck it up buttercup . It really, Iíve loaded bikes, quads, my old rzr s, bags of sand, large rocks, take my fifth wheel hitch out and put in, and all kinds of other stuff while itís lifted.

My dads 15.5 is 2Ē shorter bed rail height from the ground but his bed floor is lower from the top of the rail. Makes it like a lifted truck to get things in and out unless the tail gate is down.
Good point about the new trucks. Got behind a new f250 the other day and it seemed like the bed rails wouldve been up to my shoulders. You make a good point there haha as far as lifting, imma scrawny little runt so thatís part of the issue. Iíve never actually saw a big picture of your truck James. To the OP. Listen to what this man says. Donít cheap out. Get good quality lifts and parts. Your wallet may hurt more at first but less later when you donít have to replace prematurely worn parts.
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Without a duramax... hopefully not for long.

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2003 Kawasaki Z1000
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Old 02-18-2018, 08:57 AM
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Take a look at Mcgaughys lifts. Supposed to be good stuff. Otherwise Cognito

http://mcgaughys.com/t/lifting

Also, pay close attention to your CV angles when setting the hight. Keep them as level as possible or slightly down if you want them to live
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Old 02-18-2018, 09:06 AM
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Mcgaughys will need to be cranked to fit 37s and not rub off road
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Mike L is my role model. I want to be like him when I grow up.
James

02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
Tailgate Crew Member #4
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Old 02-18-2018, 09:11 AM
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Thanks guys, never heard of cognito before. I was thinking bulletproof was the best. I plan on rebuilding the front when I do the left. By that time I'll be close to 300k miles on all factory front end. With an 8" lift is there any modifications I have to do? Like driveline and such?
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Old 02-18-2018, 09:32 AM
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Quote:
Originally Posted by Philv View Post
Thanks guys, never heard of cognito before. I was thinking bulletproof was the best. I plan on rebuilding the front when I do the left. By that time I'll be close to 300k miles on all factory front end. With an 8" lift is there any modifications I have to do? Like driveline and such?


Front drive shaft will vibrate when in 4wd and going over 45mph. You can put a dc drive shaft in to stop the vib but it is weaker than stock and known to break. You will need to cut the top ear off the diff on most lifts as well as cut the bracket off the driver side rear lca location.

About all the modding there is. May have to move some rear brake lines/e brake cables around too
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Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
Tailgate Crew Member #4
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Old 02-18-2018, 09:38 AM
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Quote:
Originally Posted by Chevy1925 View Post
Front drive shaft will vibrate when in 4wd and going over 45mph. You can put a dc drive shaft in to stop the vib but it is weaker than stock and known to break. You will need to cut the top ear off the diff on most lifts as well as cut the bracket off the driver side rear lca location.

About all the modding there is. May have to move some rear brake lines/e brake cables around too
Ok that's not bad. Guess for the front drive line, I'll get the lift done and go to a shop for a custom built shaft. But I won't be doing the lift till everything else is done.
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Old 02-18-2018, 10:43 AM
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Quote:
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Ok that's not bad. Guess for the front drive line, I'll get the lift done and go to a shop for a custom built shaft. But I won't be doing the lift till everything else is done.


Having a custom shaft built wonít help. The clearance between the drive shaft and trans is too close to put a decent sized DC on to hold the torque.
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Quote:
Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

02 LL7 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
Tailgate Crew Member #4
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Old 02-18-2018, 10:53 AM
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Having a custom shaft built wonít help. The clearance between the drive shaft and trans is too close to put a decent sized DC on to hold the torque.
Is it possible to buy an adapter for the t case to drop the front output down an inch or two? And would that help?
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