Half shaft spacers.
07-13-2007, 09:28 PM
#145
Just installed the 7.5mm spacers this week, lowered on Eibach Pro Kit. Read everything there is to read on this subject and am more confused than ever. I have not read anything bad about the spacers unless I missed something so I decided to pull the trigger.
07-14-2007, 01:24 AM
#147
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Avionics86 Posted on Jul 14 2007, 06:28 AM
Here's one: with spacers the CV bucket is not directly clamped onto the output shaft anymore (yes.. there is a spacer in between
) and that is - in theory - a weaker mechanical setup.
Here's another one: they did cost you $$$ and are useless, IOW they don't prevent the CV's from pitting.
RED MX5 Posted on Jul 14 2007, 06:35 AM
[QUOTE]
So all the effort put into the thread was a total waste of time
I have not read anything bad about the spacers unless I missed something
Here's one: with spacers the CV bucket is not directly clamped onto the output shaft anymore (yes.. there is a spacer in between
) and that is - in theory - a weaker mechanical setup.Here's another one: they did cost you $$$ and are useless, IOW they don't prevent the CV's from pitting.
RED MX5 Posted on Jul 14 2007, 06:35 AM
[QUOTE]
So all the effort put into the thread was a total waste of time
07-14-2007, 06:52 AM
#148
All the information was great and a lot of time and effort went in to it. I could tell I was going to get flamed because this was an anti-spacer thread. With all the information out there both pro and con I could not decide on weather to get them or not. The approach I took was when lowered, it stretched the cv joint and the spacer just pushed it back to stock distance. I did not find the "sky is falling" statement that if you have them your cv joints will self destruct and they all must be removed. I have been wrong before and will be wrong again but I am keeping them in. The problem I had was with the bolts: vendor stated they were the new upgraded bolts and could be torqued to OEM specs. The bolt had 10.9 on the head and would not come close to 61 ft lbs. Replaced with a grade 8 standard bolt and torqued to 61 ft lbs and all is well. 
07-14-2007, 08:48 AM
#149
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Avionics86 Posted on Jul 14 2007, 03:52 PM
Flamed?
No..
This is not an anti-spacer thread at all.
Anti in a way that there are true pro's and con's and there is room for opinions.
Dare: post some pro's based on sound technical principals and back them up by drawings or whatever you can think of.
From a technical, unbiased point of view, one can only come to the conclusion that CV spacers do not do what they are supposed to do and do not do what they are sold for:
Lowering does not stretch the CV joint.
Spacers do not put them back in stock position.
Lowering does alter the ange at which the axle enters the CV bucket and spacers do not change that at all.
A 10.9 grade bolt is stronger then a grade 8 bolt.
How could you not get a 10.9 bolt up to 61 lbf/ft?
I could tell I was going to get flamed because this was an anti-spacer thread.
No..
This is not an anti-spacer thread at all.
Anti in a way that there are true pro's and con's and there is room for opinions.
Dare: post some pro's based on sound technical principals and back them up by drawings or whatever you can think of.
From a technical, unbiased point of view, one can only come to the conclusion that CV spacers do not do what they are supposed to do and do not do what they are sold for:
.... when lowered, it stretched the cv joint and the spacer just pushed it back to stock distance.
Spacers do not put them back in stock position.
Lowering does alter the ange at which the axle enters the CV bucket and spacers do not change that at all.
The bolt had 10.9 on the head and would not come close to 61 ft lbs. Replaced with a grade 8 standard bolt and torqued to 61 ft lbs and all is well.
How could you not get a 10.9 bolt up to 61 lbf/ft?
07-14-2007, 09:13 AM
#150
I do not understand why the bolts stripped out, I tried three different torque wrenches and they all stripped. I even went to Home Depot and got a metric 8.8 which is not as strong and that tightened to 61 ft lbs with no problems. The only thing I can think of is the kit came from China and what if... Getting back on subject: if you hit a pot hole and the rear wheel travels one inch up does the cv axle move an inch outward to accommodate this travel? I do agree that lowering alters the angle of the cv axle. This was my way of simple thinking: lay a pencil on a flat surface with the tip against a wall, now move the pencil up 45 degrees. Now there is a space between the pencil and the wall. Just as on the car the wheel assembly is the fixed point, by lowering your car it does change the angle of the cv axle and by changing the angle it also creates a space and the spacers accommodate for that. My thinking could be all wrong. BTW a standard grade 8 bolt has the same strength as a metric 10.9 bolt.