Filed under Rule 424(b)(2), Registration Statement No. 333-183535

Pricing Supplement No 20 - Dated Monday, July 8, 2013 (To: Prospectus dated August 24, 2012)

CUSIP

Number

Principal

Amount

Selling Price

Gross

Concession

Net

Proceeds

Coupon

Type

Coupon

Rate

Coupon

Frequency

Maturity

Date

1st
Coupon

Date

1st
Coupon

Amount

Survivor's

Option

Product

Ranking

02006DBT7 [ ] 100.000% 0.750% [ ] Fixed 3.000% Monthly 07/15/2015 08/15/2013 $2.25 No Senior Unsecured Notes
Redemption Information: Callable at 100% on 7/15/2014 and Monthly thereafter with 30 Calendar Days Notice.

02006DBU4 [ ] 100.000% 1.300% [ ] Fixed 4.200% Monthly 07/15/2017 08/15/2013 $3.15 No Senior Unsecured Notes
Redemption Information: Callable at 100% on 7/15/2014 and Monthly thereafter with 30 Calendar Days Notice.

 

Ally Financial Inc. Offering Date: Monday, July 8, 2013 through Monday, July 15, 2013 Ally Financial Inc.
  Trade Date: Monday, July 15, 2013 @ 12:00 PM ET Ally Financial Term Notes, Series A
  Settle Date: Thursday, July 18, 2013 Prospectus dated August 24, 2012
  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: Incapital, LLC, Citigroup, RBC Capital Markets, Morgan Stanley, J.P. Morgan  
     
  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.