Guess maybe I should have posted in the GM section . I just thought enough guys here would have had some experience with GM engines and the accessories that I could have got an answer here. Mod if you want to delete this thread I'll try posting in the GM section or just move it.

 

I have been wondering this myself. I haven't seen any factory ones with longer necks. I have seen a few where people have extended the neck like you mentioned.

 

I could be wrong but I really thought I saw back in the day that GM had some really long necks on the reservoir on the 2500 and 3500 trucks and some of them were equipped with 350's. I did find a high capacity tank that holds 39 ounces and it supposedly fits a GM pump just can't find what pump it belongs to though. It had a part number for the pump it fit but the link went to something unrelated. I guess will take further digging. I don't think even the PSC reservoirs hold 39 ounces.

 

You can get a power steering pump from an astrovan with hydroboost. They use external reservoirs and then you can try the astrovan's reservoir and see if thats big enough for you. If not you can get reservoirs in many different shapes and sizes off ebay.

 

most chevy guys run the radiator hose neck extender. I cut the very top off my pump and extended it 6in with a piece of pipe and welded it up.

Another option is

chrysler part number 4333475

you take this boot and trim it a little bit and clamp it to the ps pump. then it has a 3/4 inch top part which is the same size as a stock GM resivoir. You can find em in 80s vans, or a truck with a BBCs at the yards. Also astro vans. Basically with this little adapter grab the res of your choice and stick it on there. ran a 3/4 hose from pump to resi and mount it to the alternator bracket

 

Maybe not what you are looking for, but the finned coolers like this one are 3" in diameter and come in different lengths, basically it acts as a finned reservoir giving you extra fluid capacity and extra cooling. Some are straight thru (fittings on each end), others are in/out of the same side. At $60, to me it seems like a cheap, effective solution.
http://www.quadratec.com/products/56112_3000.htm

 

The only way a p/s cooler would act as a reservoir is if it was mounted above the power steering pump.

I used a short section of radiator hose to a 1.5 in pipe and threaded the end and capped it.

 

The only way a p/s cooler would act as a reservoir is if it was mounted above the power steering pump.

That's not correct. You mount it on the return side, it is 3" in diameter, so a lot of fluid is held in there as it makes its way back to the pump. Since the fluid is hot, as it passes through the large diameter finned tube, it dissipates heat. The increased capacity is 3" x the length of the cooler (3.14 x Radius squared x length= volume). Not that you would do this, but it acts the same way a very large (or very long) return line would act- it simply hold more fluid in the total system, but since it is finned AL, is sheds heat as well.

 

Thats called a finned cooler not a finned reservoir. All you have done is increase the capacity of the fluid in the system, you've done nothing to increase the capacity in the reservoir.

If you have hydro assist then turn your steering so the ram is fully retracted. Take out most of the fluid in the reservoir so its on the low side. Fire up the rig and turn the steering so the ram is extended. See how well your added "finned reservoir" capacity helps you out. :shaking:

Thanks guys for the replies and info I knew there had to be some suggestions out there. I found the clamp holding the hose to the neck was a bit loose. I tightened it up and put a couple ounces back in the hose and will hopefully get some time in it this weekend to see if it cured the leak. The reservoir I found looks like it would be more than enough at 39 ounces but it's a bit pricey at over $200.00. I like the cheap solutions first. I just really think I remember seeing very long necked reservoirs on the older GM vehicles can't remember if it was the 70's or 80's though. Thanks again if anyone has more info or ideas please post them.

You can always get a new can to put on the pump from PSC or the like that lets you run a remote reservoir which you can also buy from PSC, among others. This would let you ditch the hose and add capacity. Its certainly more money than running the extended hose.

Although the extended hose seems to be working for some.

 

Thanks guys for the replies and info I knew there had to be some suggestions out there. I found the clamp holding the hose to the neck was a bit loose. I tightened it up and put a couple ounces back in the hose and will hopefully get some time in it this weekend to see if it cured the leak. The reservoir I found looks like it would be more than enough at 39 ounces but it's a bit pricey at over $200.00. I like the cheap solutions first. I just really think I remember seeing very long necked reservoirs on the older GM vehicles can't remember if it was the 70's or 80's though. Thanks again if anyone has more info or ideas please post them.