Just started recently, and I have no idea what could be causing this. When in Reverse and I hit the brakes, the drivetrain binds badly. It is bad enough that when on a incline, I can come to a complete stop put the car in neutral (rules out transmission error) and let off the brakes and the car doesn't move. What can cause this to happen?

Relevant Drivetrain Components:
L3 Si Transmission
Run'o'the'mill axles
EX Hubs +Brakes

 

I've had a couple personal responses saying it could be the reverse gear, but in neutral it removes it from the equation. Could it be a larger problem with the differential, and if so why isn't there a problem under powered reverse?

 

For that matter, I got bored and tested it out today, once it locks up I can push it backwards by foot, and shifting back into gear, no problems. I'll give someone a if I can get a wee bit of help?

 

After some investigation, the problem is on the driver's side.

Wheel at full lock left:


Something is digging into the wheel, what though?


Does that Balljoint look healthy to you? Notice the grove is also visible here as well.

 

WOW, remove that wheel and check your rotor and caliper....thats a deep etch in your wheel!

Don't drive like that cause it could be a brake component!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alscrx &raquo;</TD></TR><TR><TD CLASS="quote">WOW, remove that wheel and check your rotor and caliper....thats a deep etch in your wheel!

Don't drive like that cause it could be a brake component!</TD></TR></TABLE>

I think he already figured it out. That balljoint on the tierod is f'd, looks like it might be that that is kissing the rim.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alscrx &raquo;</TD></TR><TR><TD CLASS="quote">WOW, remove that wheel and check your rotor and caliper....thats a deep etch in your wheel!

Don't drive like that cause it could be a brake component!</TD></TR></TABLE> Rotor and caliper have a figurative mile of clearance, DA Setup with a 15" rim. Also, no corresponding marking on caliper or bracket if for some god knows what reason they fell off then reattached.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by danmdevries &raquo;</TD></TR><TR><TD CLASS="quote">

I think he already figured it out. That balljoint on the tierod is f'd, looks like it might be that that is kissing the rim.</TD></TR></TABLE> I was thinking that the tie rod is the one making the contact, but if you can tell the scoring is on the brake side of the dust shield. But I will replace the tie-rod if that is the sign of a d.o.a. balljoint; shame since I replaced it back in July.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alscrx &raquo;</TD></TR><TR><TD CLASS="quote">WOW, remove that wheel and check your rotor and caliper....thats a deep etch in your wheel!

Don't drive like that cause it could be a brake component!</TD></TR></TABLE> I award you a keg of your favorite, because you called it. I was back under there today poking around while doing an oil change and I realized my caliper was sitting a little crooked. I grabbed it and pulled and to my amazement it moved; the bottom bolt had sheared leaving the caliper free to pivot around the upper axis. When reversing, this pivot point causes the caliper to move up and out, impacting the rim. I shouldn't have been so quick to discount your idea because it looked improbable.

 

No problem,as long as the problem is fixed
If you look carefully at that pic you posted of the wheel you can see how the caliper looks alot lower on one end compared to the other.

Just curious if you were using the factory bolts on that caliper or bolts from elsewhere.

I fear for safety with brake components ever since i drove down my street and approached the stop sign and my pedal sunk to the floor.......my rear wheel cylinder exploded literally.....scary man. I put that **** in reverse and parked it. I seen brake fluid all over the floor and wheel. Good thing i was not getting off an exit on the highway

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by alscrx &raquo;</TD></TR><TR><TD CLASS="quote">Just curious if you were using the factory bolts on that caliper or bolts from elsewhere.</TD></TR></TABLE> Factory bolts; went to the local pick and pull this morning and replaced it before class.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dr_latino999 &raquo;</TD></TR><TR><TD CLASS="quote"> I award you a keg of your favorite, because you called it. I was back under there today poking around while doing an oil change and I realized my caliper was sitting a little crooked. I grabbed it and pulled and to my amazement it moved; the bottom bolt had sheared leaving the caliper free to pivot around the upper axis. When reversing, this pivot point causes the caliper to move up and out, impacting the rim. I shouldn't have been so quick to discount your idea because it looked </TD></TR></TABLE>

i have that same groove on one of my wheels...

except it was the top bolt that came loose, so i had gravity there to help keep the caliper in an f'ed up position...