77+ caddy tank into a 1968 Sedan DeVille? Sending unit too?

[silentpoet]

Been looking for a tank for my 68 sedan deville. And while there are some used tanks I could find, I have found that I can get a new tank from either ebay or summit for about the same price.  The only problem is the new tank is for 77 and up GM vehicles.  But it looks like the filler is in the right spot.  http://www.summitracing.com/parts/RNB-576-373/  The only concern I really have is if the tank is too deep for the space under the 68.  It is also slightly smaller but that is not a big deal. 

Also not sure if the location of the pickup/sending unit would be a problem.  I think I could make the wiring work, but the other issue is I need a new sending unit/pickup.  The same accident that buggered the tank messed up the pickup tube and sending unit.  I also need to find a sending unit that would work.  http://www.summitracing.com/parts/RNB-692-051/ is almost right, but it says it is not for models with AC.  Also for cadillac applications it is only for the 87 model, but it fits several models the tank fits. 

I know one or two places that might have used tanks out of mid 70s models, but I am concerned about junk in the tank.  But I hope it would be a lot cheaper.  But if I could make the 77+ tank work I would probably rather go that way so I wouldn't have to worry about it as much.

[bcroe]

Gas tanks have a lot of fit issues.  It has width & length, there are probably a
couple big grooves that are supposed to line up with the body for alignment. 
Then there is the fill pipe.  They come in all different lengths, shapes, and
angles.  The sender/pickup is probably a minor issue; these can be modified
or built up as needed.  But, a new tank is a big advantage.  I consider tanks
a regular maintenance item, about every 15 years.  good luck, Bruce Roe

[silentpoet]

Thanks.  Over all dimensions it will fit. well at least as far as width and length.  The only concern I have is that the depth is 10 inches versus the 7 or so of the stock one.  But I am not sure the stock one is exactly that deep because mine is crushed and I had to do my best to work around that in measuring.  Also not sure of the strap position versus the stock one.  Filler is in the right spot I believe. I think I can work with that somewhat though.

[EZ]

Think of it this way Bro, Guys have been finding fuel tanks for their 30's, 40's and 50's hot rods for decades.  This was WAAAAAAAAY before all these aftermarket companies started making model specific tanks for them.  It's not rocket science.  If it fits the space, it'll work.  And if not you can MAKE it work if you really want to!
I'd say if it goes between the rails and the filler is in the right spot there's nothing to worry about.

The hard part for me would be getting the sending unit and the gas gauge to work after it was installed.  I'm not much on electronics.    But I have heard that the ohms for the sender and the gauge have to be the same.  So keep that in mind.

Good luck!!!  Post back and let us know how it went.

[classic cruiser]

try here for the right part.http://www.azvintageparts.com/

[73eldo]

I remember finding that the trucks used hose on the filler necks so you could buy the correct size hose from a place like LMC truck to make slight mods to the neck location and angle. 

[EZ]

And if the hose isn't exactly the right length when you get it just cut it in half and put a piece of the correct size tubing inside the hose to lengthen it.  Then just use hose clamps to secure it.  This is what I'm talking about.  You can modify almost ANYTHING and make it work if you just use your head.  

[73eldo]

Ya that is why they make all those exhaust bits for right?   Or are they made to adapt radiator hoses??