I welded my diff now my car yanks to the left hard

[RalliartRsX]

Originally Posted by Coupes_FTW

you're only convincing the FB kids reading this that a welded diff is more comfortable than a 2-way.

if you have any sort of finesse with the clutch a 2 way is not more "uncomfortable" than a welded diff, because, you know, you can unlock the shit with your clutch pedal

Wrong

Have you driven a Kaaz 2 way?? Clutch (gearbox) and Diff are not mutually exclusive. The Kaaz has an inherent operation which has no bearing or is affected by clutch.

And please distinguish between comfortable and operation. The welded diff doesnt clunk bang and pop (comfort). The 2 day is loud, obnoxious and annoying (not comfortable)

Outside of that, the 2 way OPERATES better than a welded diff. The welded diff is an absolute shit idea in and out.

[derass]

Originally Posted by RalliartRsX

Wrong

Have you driven a Kaaz 2 way?? Clutch (gearbox) and Diff are not mutually exclusive. The Kaaz has an inherent operation which has no bearing or is affected by clutch.

And please distinguish between comfortable and operation. The welded diff doesnt clunk bang and pop (comfort). The 2 day is loud, obnoxious and annoying (not comfortable)

Gonna have to disagree with you here.

A cam-type mechanical diff needs torque input to lock. This drives the spider gear cross-shaft into the cam ramps, forcing the clutch packs together, and locks the 2 output shafts. That torque comes from the engine accelerating the car, or the car decelerating against the engine.

When the clutch is disengaged, very little torque is being transmitted to the diff.

With the clutch in and decelerating, the only torque transmitted through the driveshaft to the diff would be generated by the friction of the constant-mesh gear box, hanger bearing, u-joints, etc. This is a very low value and not enough to lock the clutches, in my experience with my KAAZ 2-way.

Hell, the locking effect on decel is very subtle even with full torque. The locking effect is quite pronounced when accelerating through a turn at low speeds however. For example, pulling into/out of a spot in a parking lot. That requires a tight turning radius, so there is a large differential in rear wheel outputs, and a very high torque input from the torque multiplication of being in first gear. The result: alternating sounds of the inside tire skidding, and the clutches popping as they slowly slip past each other, fighting the cams and input torque.

And for the other side of the equation, with the clutch in, obviously the vehicle cannot accelerate, and so the diff would be operating on its deceleration ramps as described above.

Originally Posted by RalliartRsX

Outside of that, the 2 way OPERATES better than a welded diff. The welded diff is an absolute shit idea in and out.

I agree with you wholeheartedly here. A 2-way certainly has it's maintenance and comfort drawbacks, but there's no denying it's operation is superior to that of a welded diff.