You Can File One Form For Both The State House Primary and the Presidential/General Elections
The standard form required to request an absentee ballot in the upcoming August 2nd Michigan primary and November 8th general elections is now available online as a .pdf file here. The large print version of the application for the visually impaired as a .pdf is here. Completing and filing this application also gets you the ballot(s) for any local candidates and/or issues also voted on in August and November.
Just download this application form, fill it out, and mail it to your clerk.
Completed applications which request an absentee ballot be mailed to you must be received by your clerk no later than 2:00 PM on Saturday, 30 July for the primary, and the same time on Saturday 05 November for the general. However, this is cutting things awful close. You will receive your absentee ballot in the return mail, but bear in mind that U.S. Postal Service First Class mail is running slow in the age of Obama. Late absentee ballots are not counted and this has become a significant issue as of late.
You will probably have to mail your primary ballot by Thursday, 28 July to be assured that your clerk receives your ballot by election day, and Thursday, 03 November for the general election. You can always hand deliver (or have a friend deliver) an absentee ballot to your clerk before the polls close on election day.