DOR Diff Drop Intro and Install

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DOR Diff Drop Intro and Install

Postby Starchild » Mon Sep 26, 2005 10:13 pm

I seem to have posted up bits and peices of this write up all over. About time I posted the whole thing:


Almost anyone that has an Isuzu truck with a suspension lift will have to deal with cracked or torn CV boots sooner or later (at least those that still have IFS). Unfortunately, the torsion bar lift and increased CV angles go hand in hand. This angle puts additional stress on the boots and can cause premature wear. The increased angle also reduces the overall strength of the front axle, making it prone to breakage if you happen to be pushing the limits of your vehicle. Basically, the more flat your CV angles are, the better off you will be.

Now anyone that has had the pleasure of replacing CV boots can tell you that it isn’t much fun. It’s messy, the boots and band clamps can be tedious, and if you’ve got a lift, you can pretty much count on having to do it a few times over the life of your vehicle. Until recently, you had to choose between a decent suspension lift, and good CV angles. Thanks to a new product from Darlington-Offroad, we can now have both!

The 1.5" Diff Drop Brackets are a set of stock brackets that have been modified to relocate the front axle 1.5â€
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Postby maxwell417 » Tue Sep 27, 2005 12:32 am

Excellent write up :)
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re alignment

Postby 4x4amigo93 » Wed Jun 28, 2006 10:10 pm

do you have to get your truck re aligned afterwards?????
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Postby Starchild » Wed Jun 28, 2006 10:51 pm

do you have to get your truck re aligned afterwards?????


Nope, everything you unbolt goes right back to where it was before you started.

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Postby paynespnz » Tue Dec 05, 2006 5:54 pm

anybody know someplace else to get diff drop brackets since DOR is shut down
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Postby maxwell417 » Tue Dec 05, 2006 11:07 pm

Fairly easy to make your own, if you weld. If you don't weld, hire it done.

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Postby isuzufool » Thu Feb 21, 2008 1:14 pm

The before and after pics seem to be a little missleading. Andre, do you have an after pic that also shows the cv joints at full bump stop rest?
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CV shafts are made for breaking, right?
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Postby offrodeo69 » Sun Feb 24, 2008 12:38 pm

Is the 1.5" drop safe for 2nd rodeos Andre. I hear that 1.25" is max for the 2nd gn rodeo.
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Postby Starchild » Sun Feb 24, 2008 2:22 pm

I haven't found any more pics yet, but you can compare the pictures at ride height with the drop diff to any 1st gen rodeo with the torsion bars cranked to see the difference.

Is the 1.5" drop safe for 2nd rodeos Andre. I hear that 1.25" is max for the 2nd gn rodeo.


BigpoppaX2 installed a DOR 1.5" diff drop on his 2nd gen and has had no problems.
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Postby bigpoppax2 » Sun Feb 24, 2008 2:24 pm

I have a set of 1.5" diffdrops on my 1998 Rodeoport from Darlington offroad. As far as I know they were the prototypes for the 2nd gen trucks.

I didn't have any issues with mine. I did let Joe Darlinton know they needed to be rounded at the edges to make installing them easier than square edges.

Oh, and Joe is back in Business.

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Diff drops for 99 amigo

Postby sudo » Wed Mar 19, 2008 10:35 pm

Where would I find some diff drops for a 99 amigo?
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Postby OzLuvTrucker » Thu Mar 20, 2008 7:03 am

Im a little confused :? Ok here go's, so if dropping the diff 1.5" after a 1.5" t bar crank brings your cv's angles back to stock, what happens now to the cv angle at full upwards suspension travel? is the cv angle increased?
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Postby Starchild » Thu Mar 20, 2008 11:51 am

With the drop diff, the uptravel should be well within the operating range of the CV. I haven't payed attention to the angles at full compression, but I think it would probably be less than the CV angle without the brackets at full drop.

Where would I find some diff drops for a 99 amigo?


It sounds like Darlington Off-Road is back in production. They are the only commercial source of brackets, and they should be available for your vehicle.

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Postby amigofriend » Sun Apr 13, 2008 8:53 am

ok i looked and looked for these brackets and cant find them i found darlington- offroad, but i dont see any info on the brackets it just keeps showing me links for other crap, dose any one know the exact web page?
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Postby Joe Darlington » Sun Apr 13, 2008 9:18 pm

amigofriend wrote:ok i looked and looked for these brackets and cant find them i found darlington- offroad, but i dont see any info on the brackets it just keeps showing me links for other crap, dose any one know the exact web page?


Haven't got the website back up yet, still making and selling stuff for Isuzu's. just PM me with what your intereted in and your contact info and I will get back to you.
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Postby OzLuvTrucker » Thu May 15, 2008 8:00 am

Im about to drop the diff in my 80KB ISUZU(Chev Luv), im going to cut and reweld the brackets like the above pics. If i drop the diff 1.5 inches, will this still leave the uni joints on the tranfercase to diff driveshaft at aceptable working angles? Also my diff brackets have a rubber donut between them and the chasis, much like a body mount rubber. Is it ok to delete these and use a solid spacer? Thanks
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Postby Starchild » Thu May 15, 2008 12:02 pm

Also my diff brackets have a rubber donut between them and the chasis, much like a body mount rubber. Is it ok to delete these and use a solid spacer?

The brackets pictured above have rubber bushings at the frame mounts. I would try to keep them if possible.

If i drop the diff 1.5 inches, will this still leave the uni joints on the tranfercase to diff driveshaft at aceptable working angles?

Since the front axle does not move relative to the T-case, the angles on the front shaft should be fine.

I'd be curious if your brackets are much different than what is shown here.

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Postby OzLuvTrucker » Thu May 15, 2008 10:47 pm

Here are some pics of the brackets off my KBD40 ISUZU (Chevy Luv)
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I should'nt have any problems cutting and rewelding from what i can see.
I've searched the web and hav'nt seen this done to a Luv before, this may be a first :o
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Postby 04blackgmc » Sun Nov 09, 2008 3:08 pm

u can actually get the bracket out by unbolting the shock from the lower control arm..
Left the front axle attached to the diff and all..
In the process of doing the passenger side axle today waiting to get the seal since it was shot..
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asco hub

Postby dtilley86 » Mon Dec 29, 2008 6:08 pm

04blackgmc wrote:u can actually get the bracket out by unbolting the shock from the lower control arm..
Left the front axle attached to the diff and all..
In the process of doing the passenger side axle today waiting to get the seal since it was shot..


does any one have any info on the isuzu built chevy luv front axle hubs
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Postby Ditchdoc » Wed Jan 07, 2009 7:02 am

Subscribed, I should be doing mine in a month or two :D
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Postby dtilley86 » Mon Jan 19, 2009 3:01 pm

does any one know where i can get the seals and bearings and snap rings all that stuff for the front axle
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Postby bigpoppax2 » Mon Jan 19, 2009 4:21 pm

Good judgment comes from experience, and a lot of that comes from bad judgment.

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Postby Red0ktober » Mon Jan 19, 2009 4:53 pm

And now he'll have more spam.
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Postby bigpoppax2 » Mon Jan 19, 2009 7:28 pm

Oh well, he's posted his e-mail on here lots of times. I don't guess it really matters.

Had it not been posted before I may have thought twice.
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