What is the difference in front and rear sumps as far as needing to match when putting in a new or reman block? Will both fit in '72 4x? Also short and long pickup tubes. I'm guessing long pickup tube for sump in the rear. Thanks, Mike

 

4x4 use a rear sump.

 

Fordeverpower is absolutely correct. However a front sump will fit on a 76 Highboy. The truck 352 I have in my truck accidently fell off the cherry picker and crushed the rear sump pan. Only fell about 4 feet but a full dress FE is heavy. Only thing I had was a front sump pan, I put that on until I could get a rear sump pan. The one on the 390 I took out of the truck was leaking and I had to have the flanges straightened before I could use it. Only thing is be careful when you're four wheeling, looks like if you stuff the suspension hard the oil pan will say good bye. I have a rear sump on it now.

 

Rear sump pan puts the pick-up for the oil in the back of the motor for when you are climbing hills.... No oil starvation, or you could add a few baffles to keep the oil up front.

--Mike

 

if it's a half ton 72, i've seen the panhard bar hit a front sump pan... a buddy pulled a motor from a 2 wheel drive and just put it straight into the 4x and didnt wanna change the pan and pickup.. hit a water bar pretty hard out wheelin' and the rest is a oily spot in the history books... LOL