Rep Power: 373

I was talking to my dad last night about my tranmission and how i am having to get a new one installed. he said sometimes that when you raise or lower a car it will affect the transmission and other parts of the car causing stress on those certain parts and causing them to fail. I have only lowered my car 1.6 inches with eibach sportlines and have installed the eibach camber kit as well.

he said that when you raise a jeep or other trucks you will notice in the rear how the "pumpkin" is tilted upwards to keep the tranmission parts straight and relieve stress on the tranny. i can understand that causing a problem cause some of those trucks are raised 6 inches, but my car was only lowered about 1.5 inches.

Any comments?

Injen

 
Rep Power: 412

No it won't. It might put stress on your power steering and CV joints if you are too low, but you aren't that low. YOu shouldn't have any problems.

 
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yeah, you should be fine. My car is dropped a little over 2". fr/rr camber kit, struts, all that. Never a prob. Im also boosted, and I still have no tranny probs, hehe. Dont worry about it

 
Rep Power: 310

Sounds like your dad works for Honda and you came in to get warrenty work done on your headlight not working. It turned out that because you're lowered the tranny was affected and in turn your headlight was affected. So the whole warrenty is void.

 
Rep Power: 310

Your dad is right when it comes to those type of vehicles. You have to watch the angle of the pumpkin(dana, third member, differential) so that you dont ruin the u-joints.

 
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due to the stiffer lowering spring it might put some stress on some motor mounts?

 
Rep Power: 812

i've never heard of a lower car causing tranny problems. Otherwise those bmw and sports cars would be in the shop alot more often. Most that I've seen have 1 finger gap stock.

 
Rep Power: 304

hahahahahah

 
Rep Power: 333

cant forget bmw/benz uses pretty low profile tires for OEM equipment.
when my parents drive the 5 series, its no gap in the rear and half finger up front.


as for your father, hes pretty false. ask him how so? because the words he has told you is something the dealer would say when you bring it in for warranty.
when i had srs light problem in my acura, i brought it to the dealer under warranty. they straight up told me my aftermarket sway bar caused it and that they cannot work on my case any further.

 
Rep Power: 812

they said the same when I had my hid lights. They said they can't do the headlight recall cause i have aftermarket headlights. Um guess what? they only draw 35w instead of 55w.

 
Rep Power: 424

U joints = Fu(ked at about 11 degrees
CV joints= Fu(ked at about 25 degrees.
I did some researching on this for a project, I didn't pull these out of my ***.
The transmission itself isn't messed up by it, what can happen is you shred splines. The greater the angle, the less torque they can transfer. There's usually a pretty heafty safety factor built in, so this really becomes a problem when you add lots of power and don't upgrade the axles and stuff. Lowering the car 1.6" doesn't do anything... thats within the normal travel range of the suspension anyways. Jacking a truck (jeep whatever) 6" is a different animal all together.

 
Rep Power: 424

Ummm yeah. Nothing to do with this. Its not like they're lowering it from the factory. They're building the car. They can put the diff, the fenders and the wheels at any orientation they want, then set the car static from there. You can sell a car with wheels tucked if you want.... just make the fenders low enough.

 
Rep Power: 373

okay, ya i am sure he is right about the trucks and stuff, he just thought that lowering might cause that problem like it does in those types of vehicles. none the less i thought it might be something to look into. Thanks guys.

injen

 
Rep Power: 0

For our FWD, your main concern is lowering too much that will cause bumpsteer.
Other than that, you seem fine(except for maybe sh1tty ride?).

If your raising or lower a rear wheel / 4wheel drive vehicle then that's different.
For example raising your truck/etc too much causing a huge increase in driveline angle, will cause driveline vibration, etc, that's when u need to . I THINK the ideal angle is below 15degrees?.. but again i'm don't remember much in details from college. So his dad is right... but not in his case.

As for BMWs, just cause your parent's bmw sits low doesn't mean is okay for every other car to sit low. As boilermaker mention, they have all their driveline ,differential,axles and suspension setup like that for whatever reason they have..