09-28-2008, 11:10 PM
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#1
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diff drop. necessary?
i just got a 3 inch toytec lift (front spacer rear ome coils and rear bilsteins) so do i need a 1 inch diff drop? and is it hard to install?
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09-29-2008, 08:05 AM
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#2
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Yes you need one and No, it's not hard to install.
You increase your risk of damaging your CVs without a diff drop installed.
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2002 4Runner Sport 4WD
Headlight Adjustment
"Live life w/o Limits. Your imagination is not limited by time or distance, by logic or by scarcity. You can fill your imagination with whatever you choose."
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09-29-2008, 10:46 AM
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#3
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I got 3 inches of lift with my Tundra coils and have the extra wheel travel from the OME struts. I do not have the diff drop stuff fitted and don't plan to. I off road regularly and have never had any issues at all. Most people do the diff drop cause they are afraid of damage but there is no evidence at all that it has any real benefit. I say save your money for something else.
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09-29-2008, 01:00 PM
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#4
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Quote:
Originally posted by techno
I got 3 inches of lift with my Tundra coils and have the extra wheel travel from the OME struts. I do not have the diff drop stuff fitted and don't plan to. I off road regularly and have never had any issues at all. Most people do the diff drop cause they are afraid of damage but there is no evidence at all that it has any real benefit. I say save your money for something else.
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I know a couple guys that have damaged their CVs in just 2 months of having their lift installed b/c they did not install a diff drop kit. On the flip side, I also know of a guy with a lifted 4Runner that has yet to have an issue with his CVs. Doesn't mean he won't, I'll just have to wait and see.
In short, just b/c you personally have not yet had any issues with your CVs, doesn't mean you don't need one. You may be fine now, but without a diff drop installed, you simply increase the risk of damaging your CVs in the long run. Remember, I didn't say you would damage your CVs w/o running a diff drop, I simply said you greatly increase your risk of damaging them w/o a diff drop. It's like riding a bike w/o a helmet. You can do it, but you greatly increae you risk of a head injury during a wreck without wearing one.
Check out Steve's site for more info on this matter: Click Me. As quoted from Sonoran Steel's site: Front differential drop spacers simply improve the CV angles on your front axle shafts after a lift has been installed.
Oh and no offense, but if you seriously believe there is no evidence to back this information up, you need to contact Steve Schaefer immediately. He can provide you with all the evidence you need. You think he includes these diff drop kits in his lift kits just for the fun of it??
Besides, his diff drop kit is only $40...that's about the cheapest insurance you can purchase for your vehicle. It's even cheaper than a tank of gas
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2002 4Runner Sport 4WD
Headlight Adjustment
"Live life w/o Limits. Your imagination is not limited by time or distance, by logic or by scarcity. You can fill your imagination with whatever you choose."
Last edited by Rock Slide; 09-29-2008 at 01:06 PM.
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09-29-2008, 03:11 PM
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#5
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Quote:
Originally posted by Rock Slide
Check out Steve's site for more info on this matter: Click Me. As quoted from Sonoran Steel's site: Front differential drop spacers simply improve the CV angles on your front axle shafts after a lift has been installed.
Oh and no offense, but if you seriously believe there is no evidence to back this information up, you need to contact Steve Schaefer immediately. He can provide you with all the evidence you need. You think he includes these diff drop kits in his lift kits just for the fun of it??
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Funny you should mention Steve. He confirmed my suspicions that these kits are not necessary. When I did my lift I emailed him about the diff drop and questioned the negative effect it has by increasing full compression cv angles. He told me that although he sells the kit, in reality it doesn't really do much. He told me not to bother with it. Most cv's fail from excessive stress and not excessive angles. So actually, I do think he (and others) sell them for fun, $40 for two 50c spacers and a couple of bolts?? What a joke.
I'm not saying people are silly or stupid for installing them, they don't do any harm, and if it gives you some piece of mind then that's great, I just dont think they are truly needed, and my research confirmed it for me.
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09-29-2008, 04:15 PM
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#6
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See my post further down from Steve himself.
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2002 4Runner Sport 4WD
Headlight Adjustment
"Live life w/o Limits. Your imagination is not limited by time or distance, by logic or by scarcity. You can fill your imagination with whatever you choose."
Last edited by Rock Slide; 02-10-2010 at 09:19 AM.
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09-30-2008, 12:11 AM
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#7
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A common cause of cv joint failure is overheating. This usually happens when dirt and water get into the joint when the boot has split or come loose and the moly grease comes out letting bad stuff in. Its a good idea to regularly check the boot condition to make sure they are not damaged and that grease is still packed in the joint. I know that sometimes at full droop the boot can rub on itself which might cause premature wear and result in a split, but a properly fitted boot should not do this. Regular inspection, maintenance and sensible wheeling (yeah, I know, not always possible!) is the best idea.
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09-30-2008, 04:18 PM
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#8
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Member
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thanks guys!
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09-23-2009, 11:56 PM
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#9
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reviving the dead thread
So, maybe just getting long travel inner cv boots and leaving the diff alone is the way to go?
For Steve from Senora Steel to say their so useless, he sure does a good job of marketing them on his website for just how great they are...
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Current Rig: 1999 5Runner (customized 100 series LC)
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Past Rig: 2000 Sport Edition -- Debadged -- Flares Removed -- 5 BFG AT's 265/75/R16 -- OME 882 & LC Coils -- SS Diff. Drop -- Dual Optima Batteries -- Tundra 199mm brakes
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02-10-2010, 09:11 AM
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#10
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Quote:
Originally Posted by CSL
For Steve from Senora Steel to say their so useless, he sure does a good job of marketing them on his website for just how great they are...
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CSL, Steve just shot me an email and asked that I clear up that misinformation he was quoted as saying. Per Steve's email:
The diff drop does without a doubt help. It makes a 3” lift have the CV angles of a 2.5” lift. The cost is also very small, so for $45.00 removing ½” of CV angle is well worth it.
What is does not do is fix catastrophic lift issues. Guys will call with exploding CV’s and violent shakes going down the road. The diff drop will not fix these catastrophic lift issues. None of our lift kits have any of these issues or anything even remotely close. All of these callers have lifts from other vendors or something they pieced together themselves.
As for “techno” I generally do not divulge much info to the “self builder”. If you call me up and you are building your own lift kit, I will wish you the best of luck, but no, I will not tell you all about our research and development. You will get very vanilla and generic answers. If you are a customer I will bend over backward to offer all the support you need so you will have no issues.
The 1.2 kit is extremely refined at this point and can not possibly be made any better. It already pushes the truck and the suspension to the ultimate limit.
Thanks-
Steve
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2002 4Runner Sport 4WD
Headlight Adjustment
"Live life w/o Limits. Your imagination is not limited by time or distance, by logic or by scarcity. You can fill your imagination with whatever you choose."
Last edited by Rock Slide; 02-10-2010 at 09:17 AM.
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02-10-2010, 09:54 AM
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#11
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Quote:
Originally Posted by Rock Slide
CSL, Steve just shot me an email and asked that I clear up that misinformation he was quoted as saying. Per Steve's email:
The diff drop does without a doubt help. It makes a 3” lift have the CV angles of a 2.5” lift. The cost is also very small, so for $45.00 removing ½” of CV angle is well worth it.
What is does not do is fix catastrophic lift issues. Guys will call with exploding CV’s and violent shakes going down the road. The diff drop will not fix these catastrophic lift issues. None of our lift kits have any of these issues or anything even remotely close. All of these callers have lifts from other vendors or something they pieced together themselves.
As for “techno” I generally do not divulge much info to the “self builder”. If you call me up and you are building your own lift kit, I will wish you the best of luck, but no, I will not tell you all about our research and development. You will get very vanilla and generic answers. If you are a customer I will bend over backward to offer all the support you need so you will have no issues.
The 1.2 kit is extremely refined at this point and can not possibly be made any better. It already pushes the truck and the suspension to the ultimate limit.
Thanks-
Steve
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Steve sent me the same email yesterday.
Since my last post, I have purchased his diff drop and I have photo proof of the difference in the drop on this thread:
http://www.toyota-4runner.org/3rd-ge...ce-photos.html
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Current Rig: 1999 5Runner (customized 100 series LC)
==============
Past Rig: 2000 Sport Edition -- Debadged -- Flares Removed -- 5 BFG AT's 265/75/R16 -- OME 882 & LC Coils -- SS Diff. Drop -- Dual Optima Batteries -- Tundra 199mm brakes
Custom Kitchen -- Cargo Door Light -- Enlarged Storage Compartment
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02-10-2010, 11:02 AM
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#12
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Ok good. I thought I remembered seeing those photos of yours. I was more of less posting Steve's email to clear up Techno's misinformation for other users who may come across this thread while searching.
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"Live life w/o Limits. Your imagination is not limited by time or distance, by logic or by scarcity. You can fill your imagination with whatever you choose."
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02-10-2010, 11:15 AM
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#13
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Well according to Slee Off Road who sells ARB/OME, you don't need a diff drop. He says "at best" it improves the angle by .5" plus youre only lowering the front at not the rear now you have them at different angles. With an OME kit it really isn't necessary. I think most people just think they need it because other people say they do even though the people giving the information out may not have first hand experience. Slee also said that having 10 year old cv boots is more of an issue than the angle because the rubber surround deteriorates over the years and they've had zero issues when people install new boots. I was told to save my $30. Just what I was told.
Last edited by GX4SEVEND; 02-10-2010 at 11:55 AM.
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02-10-2010, 11:54 AM
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#14
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Well, you can all thank Steve for the 'misinformation' that apparently I am 'spreading'. If he thinks the the diff drop is worthwhile, then he should have told me so instead of saying the direct opposite. I was even going to buy it from him, but he told me not to bother. Perhaps his research has progressed further than it was back then, I don't know. If I still had his email reply, I would post it and I think you would all be a little surprised.
I am going to contact Sonoran Steel directly to resolve this issue. I have no problems with Steve at all and have no intentions to slander his business.
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02-10-2010, 12:38 PM
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#15
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Quote:
Originally Posted by 05 LTD
Well according to Slee Off Road who sells ARB/OME, you don't need a diff drop. He says "at best" it improves the angle by .5" plus youre only lowering the front at not the rear now you have them at different angles. With an OME kit it really isn't necessary. I think most people just think they need it because other people say they do even though the people giving the information out may not have first hand experience. Slee also said that having 10 year old cv boots is more of an issue than the angle because the rubber surround deteriorates over the years and they've had zero issues when people install new boots. I was told to save my $30. Just what I was told.
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I have heard more info to suggest doing the diff drop than to not do it. My understanding is that you only really need it if you are going to do some serious off roading that will put even more stress on the CV's when you flex. You don't really lower them, they just rotate forward about an inch, which in turn lessens the angle resulting from the lift. My position is why not spend $35 or so just in case, rather than take a chance on several hundred replacing a busted CV, especially if it does that out on the trail in the middle of nowhere. I saw this happen at the Toyota Jamboree in January out at Gilmer. Pretty much ruined the guys weekend.
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