1990 Chevy Suburban

1990 Chevy Suburban questions and answers

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Q: how much freon do i need do i need for a 1990 chevy suburban w/ a rear a/c unit?


A: 5lb 2oz

Q: Keep Suburban or buy Smaller Car?
Can someone do the math to see how much I will save. I have a 1990 Chevy R-1500 suburban with 5.7L/auto. I got 17 mpg on the last tank (40 gal) and gas is $3.699/gal. I drive about 30 mpd roundtrip 5 days/week. Insurance is $65/6 months, tag is $32.50/year and I do not owe anything on this vehicle. Looking at a smaller car that gets 35 mpg, insurance would be about $200 / 6 months, tag is $87.50 / year, and monthly payments would be about $120 per month. Is it cheaper to keep the paid for suburban or buy a smaller car and make monthly payments. Also, what price per gallon would fuel have to be for me to come out even or better?

A: That Suburban is 18 years old. If the car is in good condition (is not ridden with problems that needs constant repair), then I'd say keep it. If it's costing more to keep the car in good repair than it's worth (a quick look at Kelley Blue Book http://www.kbb.com tells me that car is worth about $2000), then it's time for a new car.

Q: has anybody had any luck with freeze-12?
I found a place on the web that sells a Freeze-12 kit with all the fittings for about $60.00. Anybody had any experience (good or bad ) with this stuff? I'm gonna put it in a 1990 Chevy Suburban with a R-12 system. Any gearheads got some advice?

A: Ive used it before and it seemed to work fine, a little bit higher head pressure, but it cooled fine. For 60 dollars though you could probably go ahead and convert it to R134 though.

Q: What would you like to ask?
best oil for 4x4 automatic transmissions transpher cases on 1990 chevy suburban 1500

A: manufacturer recommended, always manufacturer recommended or an equivalent or superior grade in different brand. if it calls for dexron IV you can use dexron V safely but NOT dexron III do you see what i mean?

Q: Question about changing rear end in 88 Chevy pick-up?
have 1988 chevrolet k1500 pickup, I also have 1990 chevrolet suburban, "old body style k2500" I want to put the rear end from the suburban into my pickup. The rear end in the suburban is a 14 bolt 9.5" 33 spline axle with 8 lug hubs, and I'm wondering what all I have to change on the front to obtain 8 lug hubs to match the rear, "axles and hubs etc... and how do I have to adjust the front gear ratio? 15 hours ago - 3 days left to answer. Additional Details 15 hours ago The rear end in my pickup is a 10 bolt, 28 spline, one wheeler, with 2.73 gear ratio. The suburban is 3.73 gear ratio. 33 spline axles, and posi -traction.

A: Swap the axle shafts for 6-lug. Any '91+ 14B semi-floating axle will work that I'm aware of. Your pretty much screwed on converting your front end to 8-lug. The front suspension from a 1-ton IFS (8-lug 2500 and all 3500) is not compatible with the half ton. You cannot swap the differential, the arms, or the spindles without MAJOR modifications. For the money and efforts to do it, you might as well go find you a solid axle Dana 44 or Dana 60 (driver's side differential) and do a solid axle swap to the truck. The only thing that will swap for the front suspension is the torsion bars from an IFS GM (they are all the same length and the ends are the same size) so you could replace torsion bars with a higher spring rate from a 1-ton... I do have a list of part #'s for torsion bars and spring rates. Available from the factory was a 3.42, 3.73, and 4.10; 3.73 gears are avail for purchase from almost anywhere for the front differential. I didn't know you could get a 2.73... Oh and don't bother looking for a locker or Limited-slip for the front of a IFS GM half-ton, they don't make them. The diff housing is alum and too weak, it would just split if the cv's didn't give out first

Q: question about changing rear end in 88 Chevy pick-up?
I have 1988 chevrolet k1500 pickup, I also have 1990 chevrolet suburban, "old body style k2500" I want to put the rear end from the suburban into my pickup. The rear end in the suburban is a 14 bolt 9.5" 33 spline axle with 8 lug hubs, and I'm wondering what all I have to change on the front to obtain 8 lug hubs to match the rear, "axles and hubs etc... and how do I have to adjust the front gear ratio? The rear end in my pickup is a 10 bolt, 28 spline, one wheeler, with 2.73 gear ratio. The suburban is 3.73 gear ratio. 33 spline axles, and posi -traction.

A: The 88 should be independent front, you'd have to convert it to the solid axle from the burb. Somewhat common swap and the are kits available, cutting and welding necessary. Rears are easy, may have to cut off the spring perches and weld on some new ones. Transfer case would be on the wrong side, would need the one from the burb.