Drilling drain holes...

Drilling the lower ends of the rear suspension mount rails where they meet the frame rails is pretty common. This is probably what Lance did on your car. Panteraplace.com has some good writeups on this subject.

Blaine

quote:

Originally posted by PanteraTurbo:
Drilling the lower ends of the rear suspension mount rails where they meet the frame rails is pretty common. This is probably what Lance did on your car. Panteraplace.com has some good writeups on this subject.

Blaine

Found info...Thanks...will look tonight.

Besides the 1/2" subframe holes that were recommended in the '70s, I add a 1/2" hole at the very base of each upper rear a-arm support- the so-called 'horseshoe' stamping. Drilling a hole at the bae of each leg invariably gets a fine stream of rust and dirt out. For those who live in moist areas, we used to cork up drilled subframe holes, fill the rails with drain oil, let the car set for awhile then pull one cork and let the excess drizzle into a pan over a day or so. This coats the unseen areas and really protects the rails.
FWIW a leaky rad cap will drain water down the tank, down the fender panel directly into the right side frame-top opening. Driving in wet weather will also FILL both frame rails with water if they're not drilled; I've demonstrated this to many owners by having them stick their finger in their car's frame opening; invariably there's wetness felt inside.

Here's a link to that Pantera Place article on corrosion with diagrams of the most common sites for rust - Corrosion Article

It has a couple of images of where drain holes should go -


Boss and others, any other images or diagrams of additional spots to put drain-holes? I have the standard holes listed in the article, but it sounds like you're describing some extra ones.

Buy a rust proofing gun and blow oil in every orofice, every year! Lets keep these ol'e Cats from rusting so Our grandkids can enjoy them.
Just because you don't see rust, doesn't mean they're not rusting!
Will (oils every year)

quote:

Originally posted by #5754:
Here's a link to that Pantera Place article on corrosion with diagrams of the most common sites for rust - Corrosion Article

Boss and others, any other images or diagrams of additional spots to put drain-holes? I have the standard holes listed in the article, but it sounds like you're describing some extra ones.

I'll look there!