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General Site Info => General Discussion => Topic started by: 78 Chevyrado on August 12, 2010, 04:01:48 pm

Title: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 12, 2010, 04:01:48 pm
I'm hoping somebody knows the answer... :)

I have a 2008 Impala LT.  It has a Class II hitch and a cargo platform on the hitch.  It carries a 250lb. Wheel chair for my grandad.  The chair and platform is too much for the car.  With the chair on it it lowers the car like 4 or 5 inches.   if I stand on it and bounce it good I can make it hit the ground.  It would be ok for smooth roads, but it would be bad if i hit RR tracks or a brigde transistion on the freeway.

It has a macphereson struc rear end, IE the coil springs around the strut.  This means I cannot use an airbag inside the coil, and I cannot use the helper spring that goes on the shock absorber, which usually one or the other is what I do.  Since it's an impala, would the police springs do anything for me?  If this doesnt work, I'll have to get a small trailer for it, which I want to avoid if I can so with just the platform I can still backup easily like with no trailer.   BAsically, either way, if the impala goes anywhere, that chair goes with it.

Also the platform has a ramp on it, and if I was to use an adapter to raise the platform relative to the car, I don't think I could get the power chair up the ramp anymore, though it would be at a good height with the chairs weight on it.   Even springs would raise it somewhat,  crap this sucks.

I'd guess the chair and platform and all is about 330lbs.   If I could get grandad in my truck, I'd just use that, but it's a major ordeal to get him in the truck, both for me and him.

Thanks for the help..

The Platform:
(http://i160.photobucket.com/albums/t195/wes2880/Parts%20n%20Pieces/GEDC0014-1.jpg)

The topmost part of the hammer head is where the bottom of the platform is when the chairs on it...   It's like 5 to 6 inches.
(http://i160.photobucket.com/albums/t195/wes2880/Parts%20n%20Pieces/GEDC0020.jpg)
Title: Re: 2008 Impala Helper Springs
Post by: zieg85 on August 12, 2010, 04:35:30 pm
I had a similar problem with my SUV and a platform hitch off the back.  I just raised it 3 inches by cutting and re-welding the 2 inch square tubing.  I didn't have to contend with a ramp but 3 inches shouldn't make that big of difference with the wheelchair getting up it.
Title: Re: 2008 Impala Helper Springs
Post by: Irish_Alley on August 12, 2010, 05:08:21 pm
A form I used to be on might be able to help you naioa.com. theyhave a couple sponcers that deal with after market parts but there was a couple that had performance suspention parts
Title: Re: 2008 Impala Helper Springs
Post by: bobcooter on August 13, 2010, 08:35:13 am
I wonder if those rubber coil spring spacers would work in this application. The round kind that yopu can put under the spring. ???
Title: Re: 2008 Impala Helper Springs
Post by: frogman68 on August 13, 2010, 08:51:04 am
See if they make a air shock for it.
Title: Re: 2008 Impala Helper Springs
Post by: eventhorizon66 on August 13, 2010, 10:27:07 am
Check into police springs first.  I can't tell you for sure that they are even heavier, but I'd be willing to bet they are and might just do the job for you.

If not check these out.  They are designed for the Police Interceptor Vic but maybe you could contact them and see if they might work for your Imp.  http://www.roadmastercoilpro.com/coilpro.htm
Title: Re: 2008 Impala Helper Springs
Post by: bobcooter on August 13, 2010, 02:33:37 pm
Here are some more police springs for your car.
http://www.northernautoparts.com/ProductModelDetail.cfm?InventoryId=735316
Title: Re: 2008 Impala Helper Springs
Post by: eventhorizon66 on August 13, 2010, 02:49:16 pm
Here are some more police springs for your car.
http://www.northernautoparts.com/ProductModelDetail.cfm?InventoryId=735316

If you look at the applications, those are just factory springs.  It says "Exc. Police".  For that matter, I tried and could not find a source for the police springs.  Maybe the guys at the naioa.com site Irish suggested can help.
Title: Re: 2008 Impala Helper Springs
Post by: Stewart G Griffin on August 13, 2010, 03:30:06 pm
First off i didn't realize you had an impala.  Congratulations!   i was going to get an 06 SS last year but bullcrap happened at work and a promotion fell thru.   Now that the promotion finally has happened, in a way i'm glad things panned out the way they did----now that i am in a position to buy one i realize i don't really need one and financially it's better i don't get one;  Why spend 16K (at carmax) if you don't have to?

Anyways, concerning the question, do you have load-leveling system on this LT?

Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 13, 2010, 08:48:04 pm
no load leveler, It's an LT, second from the bottom, Fairly low on features.  I'm just not sure what I can put on it, because it doesn't have a rear axle....  looks wierd under there....lol
Title: Re: 2008 Impala Helper Springs
Post by: howlinwolf on August 13, 2010, 08:59:49 pm
find a spring off another car that fits inside the spring and around the strut, trim to fit. and tada redneck fix lol.
Title: Re: 2008 Impala Helper Springs
Post by: Stewart G Griffin on August 14, 2010, 10:26:03 pm
Sorry i can't help too much at this point;  i was going to take a pic of my parent's deville, but then upon further research i found these are two totally different chassises K and W----i had thought that all gm fullsize cars basically shared the same chassis.   The k body devilles have load leveling, but it won't work as it is not a macphearson strut type design.


However, i "heard" that other W bodys (such as the lacrosse) had load leveling, so you may want to research that.  It seems to me this would be the easiest way because it would be bolt-in---assuming load leveling was/is in fact available.  i didn't have much luck finding out either way.

2) Airlift has a universal kit for struts.

3)  Those spring spacer deals such as the coilpro system listed above maybe worth a try.
Title: Re: 2008 Impala Helper Springs
Post by: Irish_Alley on August 15, 2010, 12:01:27 am
i put a post on naioa but no bites yet ill let you know when i get one
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 15, 2010, 01:25:17 am
i put a post on naioa but no bites yet ill let you know when i get one

I appreciate it!



Sorry i can't help too much at this point;  i was going to take a pic of my parent's deville, but then upon further research i found these are two totally different chassises K and W----i had thought that all gm fullsize cars basically shared the same chassis.   The k body devilles have load leveling, but it won't work as it is not a macphearson strut type design.


However, i "heard" that other W bodys (such as the lacrosse) had load leveling, so you may want to research that.  It seems to me this would be the easiest way because it would be bolt-in---assuming load leveling was/is in fact available.  i didn't have much luck finding out either way.

2) Airlift has a universal kit for struts.

3)  Those spring spacer deals such as the coilpro system listed above maybe worth a try.


That's an idea.   I may go up to the chevy dealer and ask them about it...   I dunno maybe an ltz impala had that available.  I've just never tried to alter a strut setup other than spring compressors...  :)
Title: Re: 2008 Impala Helper Springs
Post by: Stewart G Griffin on August 15, 2010, 09:19:21 am
Max tongue weight for an 08 impala is 100lbs.   i'm baffled how such a large car has such as low tongue weight and tow capacity?  1000lbs.


Still thinking.......
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 15, 2010, 03:16:11 pm
Max tongue weight for an 08 impala is 100lbs.   i'm baffled how such a large car has such as low tongue weight and tow capacity?  1000lbs.


Still thinking.......

100lbs!   good lord, that's crappy as .....  

Well, I  rethought it, and the carrier is too much hassle, so I went today and bought a little 3x5 trailer.  The car's gonna tow that, whatever it's low rating is....lol   I think the trailers capacity is 2,000lbs, but the chair only weighs 250lbs so it'll do for what I need it for....  So tommorw I'm off to get a tag for it....   I brought it home behind the truck and it looked so funny.  it's sooo little...haha  I can't see it in the mirrors, or even looking back over the tailgate.  I think I'm gonna put a flag on it or something. ;)

Thanks for looking into this for me guys, I really do appreciate it.

(http://i160.photobucket.com/albums/t195/wes2880/GEDC0001.jpg)


EDIT:  I looked in the owners manual, and this is what it says"

"How heavy can a trailer be?"

"It should never weigh more than 1,000lbs, But even that can be too heavy"

What kind of idiocy is that?   I just love the whole, maybe, possibly, could be, on a weight rating...  I'm totally impressed by this...  

Makes me think of something Geroge Carlin said...
"They're Stunningly, and embarrassingly, full of it".

(http://i160.photobucket.com/albums/t195/wes2880/Funny%20S-h-i-t/GEDC0006.jpg)
Title: Re: 2008 Impala Helper Springs
Post by: eventhorizon66 on August 15, 2010, 03:19:12 pm
A trailer is probably the smartest solution anyways, just a bit more hassle.
Title: Re: 2008 Impala Helper Springs
Post by: bgctrading on August 15, 2010, 03:37:18 pm
Those year impalas are notorious for eating the rear tires on the inside edge esp. if loaded on the rear get the alignment checked and watch the inside edges of your tires.
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 15, 2010, 03:43:11 pm
A trailer is probably the smartest solution anyways, just a bit more hassle.

Yeah, It'll work good, the carrier would have just been a convience thing.   I'm gonna keep the carrier though,  might come in handy somewhere down the road, like when I have just one more thing to fit in the truck when its totally full or something like that.  I've needed one a few times, so it's not a total waste.



Those year impalas are notorious for eating the rear tires on the inside edge esp. if loaded on the rear get the alignment checked and watch the inside edges of your tires.

Will do.  Thanks!
Title: Re: 2008 Impala Helper Springs
Post by: bobcooter on August 17, 2010, 03:56:36 pm
Here are some more police springs for your car.
http://www.northernautoparts.com/ProductModelDetail.cfm?InventoryId=735316

If you look at the applications, those are just factory springs.  It says "Exc. Police".  For that matter, I tried and could not find a source for the police springs.  Maybe the guys at the naioa.com site Irish suggested can help.
Opps , sorry... I wonder if those spacers with bolts that you can use to jack up or compress your springs would work. I am scared to recommend too many things because those springs don't appear to have too much "meat" on them to start with.
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 17, 2010, 04:01:47 pm
Here's my new little trailer for the car to carry the wheelchair.   People laugh when I tow it behind the truck.  They all wanna know what I'm doing with it.  It does look a bit silly.... ;D

(http://i160.photobucket.com/albums/t195/wes2880/Parts%20n%20Pieces/TinyTrailer.jpg)
Title: Re: 2008 Impala Helper Springs
Post by: beastie_3 on August 17, 2010, 05:01:46 pm
Everyone point and laugh at the tiny trailer! Just kidding. But it does look silly.
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 17, 2010, 05:19:23 pm
Everyone point and laugh at the tiny trailer! Just kidding. But it does look silly.


Usually the guys at the tire shop talk about the truck, but today nobody mentioned it....   haha  they all wanted to know why i didnt just put whatever i was hauling in the truck.

I should strap a powerwheels down in it and drag that around... ;D
Title: Re: 2008 Impala Helper Springs
Post by: beastie_3 on August 17, 2010, 07:07:20 pm
Or one 2x4 on the trailer with a big orange flag on the end.
Title: Re: 2008 Impala Helper Springs
Post by: VileZambonie on August 17, 2010, 08:02:51 pm
I towed one of these to work and back once

http://www.harborfreight.com/870-lb-capacity-40-inch-x-49-inch-heavy-duty-utility-trailer-with-8-inch-wheels-and-tires-42708.html

lol I couldn't even see it. Helper springs or air spring helpers would do the trick.
Title: Re: 2008 Impala Helper Springs
Post by: 78 Chevyrado on August 17, 2010, 08:07:38 pm
I towed one of these to work and back once

http://www.harborfreight.com/870-lb-capacity-40-inch-x-49-inch-heavy-duty-utility-trailer-with-8-inch-wheels-and-tires-42708.html

lol I couldn't even see it. Helper springs or air spring helpers would do the trick.

Id want to have a crew cab dually before I'd mess with that monster.... ;D
Title: Re: 2008 Impala Helper Springs
Post by: bobcooter on August 19, 2010, 12:04:42 pm
Hope you didn't burn your clutch out Vile. ::)