Handed my car over to my younger brother for school use. Car is not stock, at 308whp atm, recently he called and said the car would somewhat jerk when try to drive from 1st (feels like car hit a wall), car does not stall and does not drive but shifts in all gears except sometime harder to get into 3rd. I understand that these msp will require a tranmission build or with a weak stock lsd I but was curious of what this sympton may lead towards.. maybe just bad lsd or need a rebuild/used transmission. Thanks MSP