Quote:
Originally Posted by 65_LS1_T56
Andrew is correct. Tire size does not affect the angles. If you put larger diameter tires in the rear, the rake of the car changes, so does the relative angles with respect to true level. The working angles however do not change with just a tire size change. Picture a car going down a hill (same as a larger rear tire), the driveline angles do not change.
If the axle is moved relative to the rest of the chassis (ie ride height change with coilovers for example), then the working angles do change.
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True but who just bolts on taller rear tires and doesn't lower it further.
But just raising the rear of the car without a rideheight adjustment changes the engine angle. Most engines need to have downward angle for float level adjust mentioned and engine oil level. Yes the working angle does not change but other issues do. But like I said who stuffs bigger rear tires under a car and doesn't lower it further. Let alone have a 6 or 7 inch rise in the drive shaft.