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rmanz

Saggy Rear End

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2002 Corolla - I'll throw another one at you. I recently had new Monroe strutts put on all around. With 130K, it made a difference in the ride but still alittle hard going over bumps. I also noticed that the rear end sags a little. I hardly carry anything in the trunk that would cause the sag. Is this normal for the old style Corolla?

 

Thank again.

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Did you get new springs with the struts? Struts are what keep the wheels on the road and give you that overall ride. The spring is what give you your static ride height and load capacity, the struts just help damping spring motion. Toyota tend to make their springs a little on the soft side - trading better compliance on bad roads for overall load capacity and long term ride height.

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Did you get new springs with the struts? Struts are what keep the wheels on the road and give you that overall ride. The spring is what give you your static ride height and load capacity, the struts just help damping spring motion. Toyota tend to make their springs a little on the soft side - trading better compliance on bad roads for overall load capacity and long term ride height.

 

Thanks for your reply. I do not think the springs were replaced. The total bill around $850.00 for 4 strutts including alignment. I took it to an alignment specialist. :angry:

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I've noticed that on my 99 also. I bought it at 30k used, now have 90k+ on it, and have had the factory set up, the TRD struts + springs, Tein Springs with KYB struts, and factory springs with KYB struts on my car at different times, and it always seemd like my rear end was riding a little low. I checked the measurements of all the rear end parts againt the Toyota crash manual, and everything was normal-I wonder if maybe this body style just looks the the rear end is a little low??

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The rear springs are probably soft because I see plenty of corollas from those years that look like they're carrying 5 people and 2 bodies in the trunk (aka wayyy too low). Maybe they really are carrying stuff in the trunk though ;-)

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my 93's rear is sagging a little. at 120k i may replace the springs...or i may not. it depends on whats in the budget. my car hauled alot of audio equipment on chicago roads and was used in alot of road trips. every now and then the passenger rear tire rubs the fender lip part of the back bumper on a hard left or over a speed bump.

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I have the problem that my car goes "thump" over every bump. I think my shocks or struts are worn out and need to be replaced. Anyone have any favorite strut to recommend and also how difficult are they to replace? I know I need a spring compressor or two to contract them - that's what the manual says. I think if a car sags, it is probably due to worn springs. The ride quality may be affected by how well the struts work. Anyone ever change out all the struts??

Edited by Bikeman982

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How can you tell if your car is sagging?

 

Maybe mine's not sagging, it would noticeable I'd think...,but you never know...I haven't driven many vehicles in my short driving career. I've driven my parent's old Subaru GL (now extinct), the family old 89 DX Corolla (also now gone to auto heaven/hell), a Dodge Stratus (rental, very streamlined and difficult for me to sit up in, and gave me whiplash even w/the slightest touch of the brake), my mom's 94 Camry, my dad's 93 Previa, and my current 99 'rolla...

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lookup or somehow get the specs for ride height and measure it. or more simply look at the car. it should sit normally with pretty equal front and rear wheel gap. in the rear of my car theres less gap than in the front buy about an inch.

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You can tell if your car is sagging a lot by looking at it's profile and if it looks like it has a lot of weight in it (although the trunk and back seat are empty) and it is sitting lower than normal, then it is sagging. It might have to do with the springs losing some of there strength over time. I have a 1994 that has higher than normal profile tires on it, so it looks higher than the stock Corolla and that's the look that I want for it. Some people like it to look like a low rider and that can be done by altering the springs/shocks/struts or by replacing them with smaller ones. I personally like to keep the ground clearance at least stock height and not any lower. I don't want to scrape the undercarriage on anything as that can cause damage. Hope this helps.

Edited by Bikeman982

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I would double check the PNs on the shocks and struts to make sure they are the right ones. A Corolla shouldn't have harsh suspention. It's pretty soft and monro replacements shouldn't be that different from stock.

 

While the springs hold up most of the weight, the shocks can change the ride hight as well. I installed new KYBs on my car that had worn suspention and the rear was saggy, but it is now higher then it was. The car looks like it did when I first got it.

 

To me, it sounds like the wrong rear shocks were used. Your car shouldn't sag and it really shouldn't be lower then it was before you had the shocks replaced. Unless, somehow your shocks were frozen up.

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Hopefully they purged your replacement shocks before they installed them. Some struts don't need that extra step - some do (usually noted on the box or install instructions). Harsh ride and reduced ride height are sure fire results of a goofed install or worn supension (leaning more to install goof).

 

gvr4ever has a very good point of part numbers - some parts manuals incorrectly identify the US market 2003 corolla as a "2002 Corolla". The 1998-2002 Corolla had heavier springs on the front than rear (fronts had higher spring rate). On the 2003+ Corollas, the springs rates were reversed (higher in rear). This would also cause issues with strut choice - if a 2003 part was used, it would be expecting a stronger spring than what is currently on the car, ruining the ride. The tech (if done at a shop) should have pointed out anything that was amiss.

 

Also the 1998-2002 Corollas (8th generation) appears to have the back end appear lower than the front (larger wheel well / tire gap up front than in the rear). Just an illusion from the body lines - can only verify by measuring the ride height from the chassis.

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That is when you take a strut or shock, turn the unit to a vertical position (sometimes upside down) and pump it a few times to purge or prime the tube. Some require it, some don't - depending on strut/shock tube design. I believe that Monroe still recommends that you purge or prime the strut before installation.

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