4crawler diff drop
Apr 28, 2005 | 03:04 AM
#21
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Originally Posted by 4Crawler
The holes on the two mounting bolts that hold the sway bar brackets to the frame. Basically need the rough size of the base of that bracket and how far apart the holes are and what size the bolt is in order to make a 1" tall block to fit between that bracket and the frame.
May 3, 2005 | 07:45 PM
#22
Digging around a bit, it seems the pair of big bolts are M14x80. This is close to what the 3rd gen bolts, only they are about 170mm long. If someone can confirm this, I should have no trouble sourcing that bolts for that, same diff drop spacers should work. Only thing left is the sway bar brkts. I'm assuming these need to be lowered, so if someone could just get a rough idea of the length/width of the bracket where it sits on the frame and pull out a bolt. I'm guessing they are M8x25 or so, pretty common size used by Toyota for these sorts of things.
May 4, 2005 | 03:04 AM
#23
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Originally Posted by 4Crawler
Digging around a bit, it seems the pair of big bolts are M14x80. This is close to what the 3rd gen bolts, only they are about 170mm long. If someone can confirm this, I should have no trouble sourcing that bolts for that, same diff drop spacers should work. Only thing left is the sway bar brkts. I'm assuming these need to be lowered, so if someone could just get a rough idea of the length/width of the bracket where it sits on the frame and pull out a bolt. I'm guessing they are M8x25 or so, pretty common size used by Toyota for these sorts of things.
May 4, 2005 | 05:42 AM
#24
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From: Barcelona (Spain)
What about the front diff bolt? The one that holds the diff attached to the crossmember...
You cannot drop the diff only by the rear bolts, if done the drive shaft will be in a strange angle!
Perhaps lowering the diff a bit and drilling a new hole in the crossmember plates... Difficult to perform I think.
David
You cannot drop the diff only by the rear bolts, if done the drive shaft will be in a strange angle!
Perhaps lowering the diff a bit and drilling a new hole in the crossmember plates... Difficult to perform I think.
David
May 4, 2005 | 06:45 AM
#25
As noted in a previous post, the front bolt is left as is, it pivots down and yes, the front driveshaft angle will be less ideal but not terribly off:
This is the same thing that is done on the 3rd gen diff drop. And yes, it is a tradeoff, you are lowering the diff to reduce the angle on the CV joints (that is the upside) but the front driveshaft angle is encreased (that is the downside). But since the front shaft is not turning all the time and is likely only used in 4WD situations when you are going slow, that may not be a big issue. And if anyone can come up with a clever and simple way to lower the front of the diff, great, but I can't see any way to do it easily.
I suppose on the sway bar bracket spacers, the holes could be drilled by the installer, the material will be plastic, so it is easy to drill.
This is the same thing that is done on the 3rd gen diff drop. And yes, it is a tradeoff, you are lowering the diff to reduce the angle on the CV joints (that is the upside) but the front driveshaft angle is encreased (that is the downside). But since the front shaft is not turning all the time and is likely only used in 4WD situations when you are going slow, that may not be a big issue. And if anyone can come up with a clever and simple way to lower the front of the diff, great, but I can't see any way to do it easily.
I suppose on the sway bar bracket spacers, the holes could be drilled by the installer, the material will be plastic, so it is easy to drill.
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