Jump to content

Differential drop opinions

brownclown01
 Share

Recommended Posts

brownclown01 Enthusiast

brownclown01

Posted
Posted

I have icon 2.5 and cognito UCA and 2inch block sitting in a box that arrived yesterday. I plan on setting suspension at at least 2.5" but concerned about CV angles at that high of a lift. I found a diff drop kit on ebay and thinking of using it but it requires some cutting/grinding of cooling fins on the diff case. That has me real nervous so might not do it depending people's opinions of CV angles raised 2.5". Anyone have any issues with cv angles at this hight? Should I just grind and it really not a big deal or am I potentially damaging or weakening the case?

 

Sent from my SM-G920V using Tapatalk

aaronarf Enthusiast

aaronarf

Posted
Posted

Skip the diff drop. If your boot fins are rubbing you can remove the factory outer clamp extend it until no rubbing and install a new crimp clamp or a marine hose clamp.

 

Sent from my SM-G930V using Tapatalk

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

No way I would do it, 2.5" leveling kit is too much on the CV angles and as far as stretching the cv boots that will really kill the boots as the bottom side of the boot will be stretched too much and they will rip quickly. As far as cutting the cooling fins off it depends on how much you have to remove

15_silverado Enthusiast

15_silverado

Posted
Posted

I have icon 2.5 and cognito UCA and 2inch block sitting in a box that arrived yesterday. I plan on setting suspension at at least 2.5" but concerned about CV angles at that high of a lift. I found a diff drop kit on ebay and thinking of using it but it requires some cutting/grinding of cooling fins on the diff case. That has me real nervous so might not do it depending people's opinions of CV angles raised 2.5". Anyone have any issues with cv angles at this hight? Should I just grind and it really not a big deal or am I potentially damaging or weakening the case?

 

Sent from my SM-G920V using Tapatalk

Not sure if you'll have to cut the fins off the front diff. Im thinking some diff drops are different than others. I say that because, I saw the Rough Country 3.5 inch lift comes with a diff drop and it says you need to cut the fins and notch the cross member. But the 3.5 superlift kit comes with a diff drop and they specifically advertise NO Cutting what so ever. So I would contact superlift and ask them about there diff drop.

 

But either way I would do the diff drop. Just my opinion.

Sierra706 Senior Enthusiast

Sierra706

Posted
Posted (edited)

Not sure if you'll have to cut the fins off the front diff. Im thinking some diff drops are different than others. I say that because, I saw the Rough Country 3.5 inch lift comes with a diff drop and it says you need to cut the fins and notch the cross member. But the 3.5 superlift kit comes with a diff drop and they specifically advertise NO Cutting what so ever. So I would contact superlift and ask them about there diff drop.

 

But either way I would do the diff drop. Just my opinion.

Because it comes with a new crossmember the differential doesn't need to be trimmed. But your cutting the factory crossmember

 

"High clearance, one-piece crossmembers, and all other load bearing bracketry, is laser cut from .25" thick plate steel. No differential trimming required, plus the factory front drive shaft is retained"

 

 

Sent from my iPhone using Tapatalk

Edited by Bushleaguechew
15_silverado Enthusiast

15_silverado

Posted
Posted

Because it comes with a new crossmember the differential doesn't need to be trimmed. But your cutting the factory crossmember

 

"High clearance, one-piece crossmembers, and all other load bearing bracketry, is laser cut from .25" thick plate steel. No differential trimming required, plus the factory front drive shaft is retained"

 

 

Sent from my iPhone using Tapatalk

I'm talking about the 3.5 in kit, just like the 3.5 inch RC kit, it's just big top spacers​ for lift, new UAC'S for proper ball joint angles, and the diff drop for proper CV axle angles. In this superlift 3.5 kit they say there is no cutting required. For the diff drop.

 

This kit has no new crossmember. But again requires no cutting.

 

 

http://www.superlift.com/3-5-inch-upper-control-arm-uca-kit-for-the-2014-2015-chevygmc-1500-2wd-pickups-with-factory-aluminum-control-arms

Jeff5347 Enthusiast

Jeff5347

Posted
Posted

I'm talking about the 3.5 in kit, just like the 3.5 inch RC kit, it's just big top spacers​ for lift, new UAC'S for proper ball joint angles, and the diff drop for proper CV axle angles. In this superlift 3.5 kit they say there is no cutting required. For the diff drop.

 

This kit has no new crossmember. But again requires no cutting.

 

 

http://www.superlift.com/3-5-inch-upper-control-arm-uca-kit-for-the-2014-2015-chevygmc-1500-2wd-pickups-with-factory-aluminum-control-arms

Do you have a 2 wh Dr? That one is for a 2 wh Dr.

 

Sent from my Nexus 6P using Tapatalk

Jeff5347 Enthusiast

Jeff5347

Posted
Posted

It's a snowball effect. I have a 3 inch right now and really wanting more lol. Really want 6 inches. That's when prices jump way up

 

Sent from my Nexus 6P using Tapatalk

15_silverado Enthusiast

15_silverado

Posted
Posted

It's a snowball effect. I have a 3 inch right now and really wanting more lol. Really want 6 inches.

 

Sent from my Nexus 6P using Tapatalk

 

That's what she said!

  • Like 1
brownclown01 Enthusiast

brownclown01

Posted
  • Author
Posted

That's what I'm seeing to and believe the consensus is to drop even at 2.5 lift. Being that I don't have much wrenching experience on trucks , if I grind can I go back if I want to return to stock if I change my mind. Also open to here from others about angles at 2.5 lift as it seems lots have 2.5 levels and don't do anything for diff drop

 

Sent from my SM-G920V using Tapatalk

Sierra706 Senior Enthusiast

Sierra706

Posted
Posted

That's what I'm seeing to and believe the consensus is to drop even at 2.5 lift. Being that I don't have much wrenching experience on trucks , if I grind can I go back if I want to return to stock if I change my mind. Also open to here from others about angles at 2.5 lift as it seems lots have 2.5 levels and don't do anything for diff drop

 

Sent from my SM-G920V using Tapatalk

You can remove the spacers and put your differential back to its stock height but you can't undo the grinding away of metal

 

 

Sent from my iPhone using Tapatalk

  • Like 1

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • asilverblazer
      Intermittent no-code issues on 2022.5+ V8 trucks — what did the shop fail to capture?

      By asilverblazer · Posted

      Length/amount of data capture will be important to consider, sifting through 5 minutes of a data log can be enormous when it is stored in milliseconds. Being able to find the 'event' let alone decipher it.   Presumably the driver would notice something and hit a button to capture the 'window' of data. That window has to be large enough for the operator to recognize the event and react accordingly.    The data has to be able to be retrieved easily.   The data has to be able to be understood. Which is the biggest challenge, dealer techs won't even know what most of it is and would likely not even look at it if an owner brought it to them. Meaning the owner, the least educated/qualified, trying to understand it.    How will the data be presented? Could specific PIDs be selected and a timelapse graph be watched? How will a specific value be noted as abnormal? Additionally, a good data logger would be able to 'learn' normal values for a specific vehicle and flag abnormalities automatically. It could in theory watch parameters degrade over time and suggest maintenance as needed. (If the MAF reading begins tapering off for a given set of other readings - MAP, throttle position, Ambient, etc.. a flag to check air filter.) With the amount of data available, a device (really the vehicle rather than an additional accessory) should be able to do more than issue a DTC. It should be able to run the full diagnostic suite automatically and present a solution rather than a code. (It's not the 90's anymore). The technology is available for the vehicle to not just say "P0087", it should know low fuel pressure, check other PIDs to narrow down the problem itself, and determine if it is a lift pump, high pressure pump, regulator, leak in the fuel line, clogged filter, etc. Even if it can't narrow it down, it should be able to guide the user to the likely problems.   This would be a major problem for dealer service departments, which are the manufacturers customers it is in their collective best interest to NOT have this available to the consumer.   Further, if the owner is going to be the primary consumer of the data, it's got to be at a consumer price point vs. dealer only specialty tool price.   This group is more 'involved' in their vehicle than general public/consumer and will have knowledge, experience, needs and desires that are quite different from the market at large.   
    • KARNUT
      OCI, not when but why?

      By KARNUT · Posted

      I put the prof up. If you read what I posted. You can see that housing, cars and income are in line with the era we were talking about. It’s harder in some places easier in others. Let’s agree to disagree and put this back on track, OK? We both are pretty stubborn and hard headed. But I bring receipts. If you wish I will not respond to you in the future. 
    • Grumpy Bear
      OCI, not when but why?

      By Grumpy Bear · Posted

      Lets see if I can sum up two pages of nothing useful.    You want to refute your own governments data of the "Purchasing Power" Index FOR THE ENTIRE USA and its territories replacing it with the experience of a single family and its business and label that reality?  Then pound on that for a week hoping it will find traction?    Stan, I've told you several times. I don't do irrational. There are more people in the USA than your family.    I'm pretty sure this tread is so blown up. I'll give you a few days or months if need be to post yourself silent then I'll see if I can find enough parts of the train to reassemble it. 
    • asilverblazer
      VSE CCV Bypass - Anyone have this installed in their L5P?

      By asilverblazer · Posted

      Facebook groups hate VSE, poor customer service; their responses to criticisms are pretty poor for a reputable company. I'm not a customer, haven't bought anything from them, but how they handle themselves on social media is a definite "No" for me. 
    • asilverblazer
      Transmission Woes :-(

      By asilverblazer · Posted

      $10,000 for a transmission?   Pretty sure I could buy all the parts, tools, and education to rebuild it myself for a quarter of that amount.   or swap it out with a new one...

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...