The 5 year ARM interest rates at GMAC are published at 3.000% and an APR of 3.122%. ARMs and their APRs change as interest rates move up and down. The 5 year Jumbo ARMs are being offered for 3.250% and an APR of 3.122%.
Standard 30 year refinance loan deals at GMAC stand at 3.875% with an APR of 3.933% today. Shorter term, popular 15 year refi loans are being offered for 3.500% at the bank carrying an APR of 3.586%. 5 year refinance Adjustable Rate Mortgages at GMAC can be had for 3.000%. and the APR is 3.102%. The 5/1 refi Jumbo ARM loans are coming out at 3.125% with an APR of 3.058%.