how big of a notch for a 65 Chevy Stepside?

Hey I have a 65 Stepside I am about to bag and was wondering how big of a notch will I need to be able to lay frame on at least the rear?? Oh yeah I will be on stock Wheels with almost Stock size tires..

I just subframed mine in the back who needs a bed i got pics of the truck on it sits like 2 in of in the back because of the stock crosmembers it has to be body droped like 3in to lay all the way and u should look in to new arms in the front it wont lay with out them or z the front just what i learned

measure from the bottom of your frame(under your cab)to the ground. and then measure from above your axle to the bottom of you frame(the part above your axle). subtract one from the other and that is how big a notch you will need.

lots of help here!! http://67-72chevytrucks.com/vboard/forumdisplay.php3?s=&forumid=25

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