10-25-2022, 11:26 AM
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#1
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Join Date: Jan 2019
Location: Central NY
Posts: 795
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Member
Join Date: Jan 2019
Location: Central NY
Posts: 795
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Question about Diff drop
Im planning to do a Diff drop. Theres no clear science or research it helps, but it cant hurt and its cheap and I keep going through CV axles.
Im not sure when the last time my mid engine skid plate has come off. I tried to remove one of the bolts and it snapped like a twig and I assume the rest are frozen on. So I believe I will not be able to support the diff from underneath with a jack.
Heres an idea and Im wondering what your thoughts are - I remove side a diff bracket bolt then slide the longer diff bracket bolt in side a. I then remove the other diff bracket bolt side b and allow the space with the longer bolt on side to slide the spacer in side b and put the longer bolt in side b. with side b secure, I remove side a bolt, slide the spacer in and torque it all down.
Do you think one bolt at a time will support the diff - or is it too heavy and too wobbly and would fall out without more support.
Thanks so much
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2008 SR5 4WD Black. Bilstein 5100, 5th gen coils/ rear springs. 255 80 17 AT for everyday use. Victory Sliders. Victory Front bumper with winch/ lightbar. headunit upgrade. Back up camera install. Expert at replacement rear hatches
All you need to go off road is to be willing to get some scrapes and dents along the way
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10-25-2022, 08:14 PM
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#2
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Join Date: Jun 2019
Location: Nevada
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Real Name: Matt
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Join Date: Jun 2019
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Real Name: Matt
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That may work for the diff drop spacers but there should be, at least mine came with spacers for the skid plates where they mount to the crossmember too (the four middle bolts. Mine is a Toytec diff drop. There’s another third back mount so I don’t think it will fall out.
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2007 Titanium SR5 4WD
Build thread: https://www.toyota-4runner.org/4th-g...ld-thread.html
Last edited by Hi-desertT4R; 10-25-2022 at 08:20 PM.
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10-25-2022, 09:15 PM
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#3
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Join Date: Jan 2019
Location: Central NY
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Forgot about the skid plate drop - you’re right. I’ll have to get some heat and hope I can slowly work it back and forth with out snapping all of them. In NY we are fortunate to have state inspections so maybe I’ll ask the shop while it’s in to try to remove the skid plate for me - so question is do I trust myself or the mechanic of the day who has better tools and a lift
I do need to probably change the front diff fluid
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2008 SR5 4WD Black. Bilstein 5100, 5th gen coils/ rear springs. 255 80 17 AT for everyday use. Victory Sliders. Victory Front bumper with winch/ lightbar. headunit upgrade. Back up camera install. Expert at replacement rear hatches
All you need to go off road is to be willing to get some scrapes and dents along the way
Last edited by Syr4RinNC; 10-25-2022 at 09:41 PM.
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10-25-2022, 10:26 PM
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#4
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Join Date: Jun 2020
Location: Charlotte
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one bolt is more than enough, even partially threaded, to hold the diff in place, it won't go anywhere. As mentioned, the skid still needs to come off and be spaced down as well.
Here is an unpopular opinion from a guy who ran a diff drop kit for over a year and ultimately pulled it off... it doesn't work. Maybe if you're running a pretty big lift up front and are literally at the limit angle of your CV axles it could help, but realistically speaking, dropping the front mount points of the diff by 1" hardly results in the same drop back at the actual CV axle. Don't expect this to be some magic cure, you'll still see similar angles at full droop.
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2003 Limited V8 4runner - 37's, Tacoma Front End swap, ARB locked front and rear , LC200 rack swap
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10-26-2022, 08:31 AM
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#5
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Senior Member
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Join Date: Oct 2013
Location: illinois
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Real Name: Ron
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The diff drops sold in US are as Amerevan says, not worth the effort. The Australians have the real deal, new brackets, etc., it really relocates the diff downward, forget the name of the company that I researched, starts with a P.
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2003 Limited, V8, AWD. 4600 Bils/FJ springs, 1/2" spacer, SPC UCA, Super Pro bushings in front LCA and in all rear control arms, Michelin 265/65R17 LTX/Defenders, stock wheels with homemade center caps, Stop Tech slotted rotors w/Posi Quiet pads all around.
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10-26-2022, 07:33 PM
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#6
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Join Date: Dec 2008
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Quote:
Originally Posted by rdruss
The diff drops sold in US are as Amerevan says, not worth the effort. The Australians have the real deal, new brackets, etc., it really relocates the diff downward, forget the name of the company that I researched, starts with a P.
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This one?
Hilux N70 & N80 Diff Drop | Phat Bars
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10-26-2022, 07:46 PM
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#7
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Have you tried at least putting some penetrating oil on those bolts first? I always start there then go to heat if need be but vast majority of the time penetrating oil and a little time works great.
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10-26-2022, 07:48 PM
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#8
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Join Date: Oct 2013
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Senior Member
Join Date: Oct 2013
Location: illinois
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Quote:
Originally Posted by Keros
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Yep, that's them!
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2003 Limited, V8, AWD. 4600 Bils/FJ springs, 1/2" spacer, SPC UCA, Super Pro bushings in front LCA and in all rear control arms, Michelin 265/65R17 LTX/Defenders, stock wheels with homemade center caps, Stop Tech slotted rotors w/Posi Quiet pads all around.
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