Filed under Rule 424(b)(2), Registration Statement No. 333-258579

Preliminary Pricing Supplement No. 304 - Dated Monday, August 1, 2022 (To: Prospectus dated August 6, 2021)

CUSIP

Principal

Selling

Gross

Net

Coupon

Coupon

Coupon

Maturity

1st Coupon

1st Coupon

Survivor's

Product

Number

Amount

Price

Concession

Proceeds

Type

Rate

Frequency

Date

Date

Amount

Option

Ranking

02006DH79

[]

100.000%

0.825%

[]

Fixed

3.800%

Monthly

08/15/2025

09/15/2022

$3.59

Yes

Senior Unsecured Notes

Redemption Information: Callable at 100% on 2/15/2023 and Semi-Annually thereafter with 30 Calendar Days' Notice.

02006DH87

[]

100.000%

1.250%

[]

Fixed

4.500%

Monthly

08/15/2027

09/15/2022

$4.25

Yes

Senior Unsecured Notes

Redemption Information: Callable at 100% on 2/15/2023 and Semi-Annually thereafter with 30 Calendar Days' Notice.

Ally Financial Inc. Offering Date: Monday, August 1, 2022 through Monday, August 8, 2022 Trade Date: Monday, August 8, 2022 @ 12:00 PM ET Settle Date: Thursday, August 11, 2022 Minimum Denomination/Increments:$1,000.00/$1,000.00 Initial trades settle flat and clear SDFS: DTC Book Entry only DTC Number 0235 via RBC Dain Rauscher Inc   Agents: InspereX LLC, Citigroup, RBC Capital Markets, Morgan Stanley, J.P. Morgan, Wells Fargo Advisors, LLC   If the maturity date or an interest payment date for any note is not a business day (as term is defined in prospectus), principal, premium, if any, and interest for that note is paid on the next business day, and no interest will accrue from, and after, the maturity date or interest payment date. Ally Financial Inc. Ally Financial Term Notes, Series A Prospectus dated August 6, 2021