TONY C Posted July 18, 2017 Share Posted July 18, 2017 8.8 center line mounted forward of wheel bearing centerline. Ideas, Concerns All Appreciated. Quote Link to comment Share on other sites More sharing options...
Neverdone Posted July 18, 2017 Share Posted July 18, 2017 How far ahead is the centerline of the diff from the centerline of the hub? Quote Link to comment Share on other sites More sharing options...
seattlejester Posted July 18, 2017 Share Posted July 18, 2017 Not great to be too misaligned. Also depends on your axles. CV joints will take more angle. With U-joints you might be at the limit of what it is happy at depending on your suspension travel. As above do you have a measurement? That would get us the angle of misalignment. Quote Link to comment Share on other sites More sharing options...
NewZed Posted July 18, 2017 Share Posted July 18, 2017 Nissan built new parts and had a Service Bulletin to fix a problem like that, on the first 240Z's. Can you get the picture any smaller? Quote Link to comment Share on other sites More sharing options...
TONY C Posted July 19, 2017 Author Share Posted July 19, 2017 Center line is approximately 1.75" ahead Have not began to figure axles but they will be cv. Looks like the shafts will be 10-12" long plus the width of the cv's Quote Link to comment Share on other sites More sharing options...
seattlejester Posted July 19, 2017 Share Posted July 19, 2017 I flipped my mustache bar and built everything to suit and ran my car with that misalignment for 1-2k miles. U joints were still tight. Is there a reason you can't move it back? Depending on you you mounted it or how the mount is made doesn't seem like it would be too difficult to correct that now unless you have a drive shaft and all that made up already. Quote Link to comment Share on other sites More sharing options...
TONY C Posted July 19, 2017 Author Share Posted July 19, 2017 (edited) Well I made the front mounts similar to MM pieces using pics of they're mounts as reference. Now I might have made them 1/2" shorter at most. But that still puts they're kit center line ahead. I can totally remake the mounts/ Or make the rear mount 1st and then make the fronts. But the diff just seems to fit easily where I put it. And the rear of the diff once a cover and mount is added it will hit the rear cross member. causing the diff to need to be lower in the rear. As I have it sitting the diff is perfectly level and square to the car. And the front yolk just barely clears the front cross member. Looks like the MM kit makes you cut a big area out of the front cross member/lca mounts to clear the drive shaft.? I guess I just need a bunch of pics of an 8.8 mounted on an S30 to see placement better. Edited July 19, 2017 by TONY C Quote Link to comment Share on other sites More sharing options...
seattlejester Posted July 19, 2017 Share Posted July 19, 2017 If I'm not mistaken I believe a lot of cars will go dog bone to remove that rear RLCA mount. Getting everything into alignment now would be better then finding out that it is causing some pre-mature wear and having to have your axles shortened, spacer made up for the drive shaft, and the mounts moidified. The only concern is that even in cars with a lot of axle movement they tend to line it up in one plane. Having the axle angled back and then moving it up and down in that plane would cause the secondary angles to be higher at the extremes via the hypotenuse of a hypotenuse type of situation. On the other hand, I would say getting a better measurement standard whether that is plumb bobs and such Calculating the angle wouldn't be too difficult. If it falls in the range of the CV joint you pick then overall there is not much of a problem as you will be working in the rated range. Quote Link to comment Share on other sites More sharing options...
zboi Posted August 5, 2017 Share Posted August 5, 2017 Don't worry about it, that should be well within the CV axle's range of articulation. Quote Link to comment Share on other sites More sharing options...
TONY C Posted August 6, 2017 Author Share Posted August 6, 2017 Actually ended up moving it back and up about .5" Machined a halo support and front mounts to match the trans angle. Now I am working on figuring CV's and outer bolt on bearings. I wish photobucket didn't screw everyone so I could post pics... Quote Link to comment Share on other sites More sharing options...
ZHoob2004 Posted August 6, 2017 Share Posted August 6, 2017 You can attach pictures directly to the forum by clicking the "attach files" button at the bottom of a new post. No more photo hosts to hold your pictures ransom. Quote Link to comment Share on other sites More sharing options...
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