no force, no flex

The only way there is no force is if the car is floating in no gravity. Even sitting still there is still a force on the rear end.

How can there be no force? That makes no sense.

rotational force is applied to axles thru the carrier. That doesnt push the carrier back, it just rotates the axles.

The force of the tires pushing the car forward is exerted on the axle bearings which are in line with the lower control arms. If the axle bearings are in line with the lower control arms that is the point of fulcrum. As indicated in that link. by "X" as zero there is no thrust pushing the carrier back.

Think of the LCA location in relitivity to the axle bearing as the piviot point of a see-saw. If the LCA is exactly 1/2 the distance between the carrier and the axle bearing an even load would be dispursed between the axle bearing thrusting forward and the carrier going backwards. If you were 300lbs sitting on one side of the see-saw and someone was only 100 lbs sitting on the other side, that person would always be in the air because 300 lbs is evenly exerted on the other side of the fulcrom point because its directly in the middle. Now picture a see-saw with the fulcrom point directly under the 300 lbs person, there would be no way you could get that 100lbs person in the air, all the force exerted by the 300 person would be directly upon the fulcrom point thus not exerting any force at the other end of the sea saw there would be no way you could get a 30 lbs person in the air.

The location of the LCA's determins which entities force is applied to and what percentage.

Well I am just saying that assuming the LCA mount and bearing are close proximity to each other, together they will be the fulcrum and the entire axle tube will flex from the force from the tire. So the axle tube/axle will have an opposite force against the carrier in the center. And even if you discredit that force, the rotational force will distort the axles to an extent too.

Edit: I am not arguing with you, just fyi. I am curious about this.

The axles would bend/snap before being able to push the differential away from the pinion gear like that. I am sure there is some movement but its the stress of the teeth intersecting on such a small surface with more pressure than they where meant to take that kills them. I went threw two 7.5's before I decided to switch to a custom 8.5 but there are alot of ways to make it stronger but it will eventually give way, the ring gear is just too small for the power these cars made stock let alone when you start modding.

I agree with this completely it makes sense physics wise, so what would be the easiest thing to do to reinforce my 10 bolt, i only wanna go to the track a few times so im not gonna be putting an extensive amount of force on it this summer.

15 inch wheel 30x9 good luck

have you ever used a TA cover?

ive used the t/a cover on my 10bolts and it makes them last pretty darn long.

ive broken one 10 bolt rear on street tires when it didnt have a TA cover, the other time i broke teeth off of the ring and pinion. ive had TA covers on 3 different rears, one i wound up selling to a friend and it still worked fine. one on the t/a which had many passes on slicks and drag radials, dumping the clutch at 6k and now the cover is on my camaro's 10bolt and ive had about 10 passes on drag radials so far, the majority being 5k-6k clutch dumps

to the OP- go on LS1tech and get yourself a TA cover for 100bucks and go have some fun.


http://www.youtube.com/watch?v=0mM66dfTeX8 6k launch on DRs in the z28
http://videos.streetfire.net/video/9...-NJ_195982.htm 5-6k clutch dumps on slicks in the t/a. i had more passes than that, just not on video

thanx ron im gonna definately look into that now

I wouldn't go to the track without one. I didn't have one on my rear and once I broke it, it only took 5 more passes after it was put back together for it to break again.

he does have one, yes.

I haz what?

huh

u haz a 14 second H/C LT1 lolz


6spd f bodies ftmfw

I had a buddy that didnt drag race much and blew 3 rears out of his 99ss...luckily he was still under warranty. W/ these rears you take the chance w/ drag racing regardless of the tires...Id probably run a nitto if you want the least amount of stress on the rear.

HA! I've got a bracket motor in my car with a manual th400 and i can attest that you can't break a stock rear with 2.7* even with DR's .......believe me i've tried!

i actually broke a 2.73 rear in my near stock 3rd gen back in the day. it mightve been the original rear in it though. if thats the case, it had 200,000 miles on it