Poor mileage

[VileZambonie]

I agree, just get a nice new tank and straps.

[ssgoodman]

because i dont know if i want to keep it with all the little things i have been finding on it and if i end up selling it i would rather put a decent 30 dollar savage yard tank in it then a 150 dollar brand new tank in it.   would a suburban tank fit into the jimmy?

[Stewart G Griffin]

It appears so.  What size suburban tanks did you find?

[ssgoodman]

its a 31 gallon like the jimmy i found it through their online parts search i didnt get to look at it.  would the suburban tank be on the side of the vehicle or in the back under the rear floor?

[Stewart G Griffin]

It's in the back under the flr just like the blazer/jimmy.

Are you sure it's out of a 90 suburban?

i think a 31 gallon tank out of a 87-89 suburban should fit.  i don't think 90 suburbans had 31gallon tanks--only 40 gals.  (i'm not 100% sure on this, so maybe the salvage yard is right)

[Captkaos]

The 28 and 31 gallon tanks are the same, but a 40 gallon tank won't fit under a Blazer.

[ssgoodman]

yeah the tank was for a 90 burban which according to everything i could find wouldnt fit.  i'm still trying to get the metal skid plate off the truck, i think i might have to take the bumper off in order to get to the bolts that are holding the plate on in the back of jimmy.  i cant get my wrenchs into the small hole to get them off.  anyone ever work with the skid plates on a 90 jimmy?  i had to remove the receiver hitch already from it but didnt help.  as far as gas tanks go i think i will just buy a new one as much as i dont want to.

[VileZambonie]

Just use the torch to get it down  You may need to loosen or remove the bumper if you can't get a swivel socket on there.

[Captkaos]

Loosen the bumper and let it sag down you should be able to get to the bolts.  I sell gas tanks and can tell you the 25 and 31 gallon tanks are the same for a Suburban or a Blazer.  The 40 Gallon is Suburban only.

[ssgoodman]

do you sell the tanks through your site captn?  i am going to try to get the tank out and see how bad the rust is and if its as bad as i thought i will buy a new tank from you.

[Captkaos]

Yes, I sell gas tanks.  The freakin 25 gallon one is on backorder though (for a Month)

[ssgoodman]

i cant find the gas tanks on the website captn where are they?

[Captkaos]

you gotta call to get them.  I haven't put them on the site.  If you know what size you want I can add it today as I have 3 thing I need to add...

[ssgoodman]

gonna try to fix the hole and cover it with rust bullet and see how well that works, maybe when i get it down i will change my mind and just buy a new one, but i am hoping to keep this Jimmy on the cheap.

[Stewart G Griffin]

Ok, so we got that resolved---sort of.

If i could hijack the thread;  i used to work at a salvage yard that dealt only with light trucks.  i didn't do much dismantling, i mostly did parts delivery.  Anyways, this thread got me thinking about fuel tank interchangability among 73-91 gm trucks and sparked some memories.

i was originally going to suggest that any suburban fuel tank would fit a blazer, but then i realized that a)i may have gotten the crew cab confused with the suburban (easy to do as i will explain in a sec) and b) even if the crewcab/suburban were interchangeable after looking at a picture of a blazer, there is no way a side, saddle tank would fit under the short wheelbase.  Which is one of the reasons why blazer don't have side tanks, only rear mounted.

So,:

1)Are the crewcab and suburban frames actually the same design with only length differences?  i never paid attention at the salvage yard because i ASSumed they were the same.  From a logical standpoint, it  is understandable-----the only visual difference between the two is wagon vs. open box.

1a) Are all 73-91 frames identical with only length differences?

2) i noticed some 3/4 pickups had rear mounted tanks?   If so,why?