Filed under Rule 424(b)(2), Registration Statement No. 333-183535
Preliminary Pricing Supplement No. 8 - Dated Monday, December 24, 2012 (To: Prospectus dated August 24, 2012)
CUSIP Principal   Gross Net Coupon Coupon Coupon Maturity 1st Coupon 1st Coupon Survivor's Product
Number Amount Selling Price Concession Proceeds Type Rate Frequency Date Date Amount Option Ranking
02006DAT8 [] 100.000% 0.750% [] Fixed 2.400% Monthly 01/15/2015 02/15/2013 $2.73 No Senior Unsecured Notes
Redemption Information: Callable at 100% on 1/15/2014 and Monthly thereafter with 30 Calendar Days Notice.
02006DAU5 [] 100.000% 1.300% [] Fixed 3.400% Monthly 01/15/2017 02/15/2013 $3.87 No Senior Unsecured Notes
Redemption Information: Callable at 100% on 1/15/2014 and Monthly thereafter with 30 Calendar Days Notice.
Ally Financial Inc. Offering Date: Monday, December 24, 2012 through Monday, December 31, 2012 Ally Financial Inc.
  Trade Date: Monday, December 31, 2012 @ 12:00 PM ET Ally Financial Term Notes, Series A
  Settle Date: Friday, January 4, 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.