Brakes acting weird after swap.

[Fbomb]

Probably at the rear axles

[DETROITMUSCLE]

the one in the trans, you kept the same axle?

[jderry]

the one in the trans, you kept the same axle?

Yepp, and same hubs up front since they were newer.

[1BADAIR]

The trans sensor Has nothing to do with abs

[DETROITMUSCLE]

shit my bad I meant the axle lol

[jderry]

All three sensros are the same that were in it before my swap, the only difference is the jumper harnesses on the control arms

[jderry]

this is a common problem on gm cars. its normally from corrosion under the speed sensor mount. gm's fix was to remove the sensor, clean and put grease around it. the corrosion forms and lifts the sensor changing the air gap. the added gap cause the sensor to loose signal around 5mph or so. when this happens the abs says OHH crap, wheel lockup and releases that wheel causing the pedal drop.
usually happens when pulling into driveways and such

So I should pull the sensor in my rear end housing, clean it and it's hole, then grease it?

[MunsterZ28]

a tech2 can tell you exactly which one it is.

[jderry]

a tech2 can tell you exactly which one it is.

I don't have acesss to one right now, neither of my scan tools here are even making a link to my car either..

[jderry]

So I bled how GM said to, I did the rear end sensor just how you guys said, turned my rotors, resurfaced pads.
Still the same s**t

[1BADAIR]

unhook a abs sensor and it will go away until you can fix it