A couple more tricks.
Use a 10 mm line wrench to significantly reduce the chance of rounding off the hex at the top of the bolt.
I marked mine so I could count the number of full revolutions.
One full revolution equals very close to 1/8" change in height.
Edit: Per GM 1 1/2" turns (540 degrees), results in an 1/8" adjustment, with counterclockwise for lowering, clockwise for raising.
1/4", which wasn't a lot because my bolts were already at a fairly low level. Some have seen much greater lowering because of where there factory bolts were set initially.
Are there any reports/documentation on if this affecting handling/performance at all? I love the looks, but I'm curious if GM had left them at a stock height for a reason.
Are there any reports/documentation on if this affecting handling/performance at all? I love the looks, but I'm curious if GM had left them at a stock height for a reason.
From what I have heard, there is no specification for the height when they come out of the factory: their initial heights all all over the place from one car to the next.
Does anyone have information which contradicts this?
From what I have heard, there is no specification for the height when they come out of the factory: their initial heights all all over the place from one car to the next.
Does anyone have information which contradicts this?
The good question is why are they all over the place from GM? I would think they would be all adjusted exactly just like every motor is 6.2 and not 6.1 or 6.3
The good question is why are they all over the place from GM? I would think they would be all adjusted exactly just like every motor is 6.2 and not 6.1 or 6.3
Motors cannot be changed so easily; the ride height can. Setting these and checking the alignment will be two of the areas that will be on my contract for PDI requirements.
1/4", which wasn't a lot because my bolts were already at a fairly low level. Some have seen much greater lowering because of where there factory bolts were set initially.
I just did mine today turned them counterclockwise until they can no longer turn, after you remove the jack and have the car on the floor you need to take it for a quick spin around the block in order for it to set in, at least I did, it lowered a total of 1/2 inch all the way around for my car.
Rear fender height before lowering was 28.75 now it is 28.25
Front fender height before lowering was 27.25 now it is 26.75
It looks much nicer, wife cannot tell the difference but you know that must be a girl thing no backlash from the ladies here please
I just did mine today turned them counterclockwise until they can no longer turn, after you remove the jack and have the car on the floor you need to take it for a quick spin around the block in order for it to set in, at least I did, it lowered a total of 1/2 inch all the way around for my car.
Rear fender height before lowering was 28.75 now it is 28.25
Front fender height before lowering was 27.25 now it is 26.75
It looks much nicer, wife cannot tell the difference but you know that must be a girl thing no backlash from the ladies here please
Jeremy, great write up and pictures. Did you measure each wheel before lowering yours? Have you noticed any difference when rolling over speed bumps? We have some monster speed bumps around here. I will be putting my C7 closer to the ground.
Jeremy, great write up and pictures. Did you measure each wheel before lowering yours? Have you noticed any difference when rolling over speed bumps? We have some monster speed bumps around here. I will be putting my C7 closer to the ground.
I have the measurements somewhere, but mine wasn't set nearly as high as others. I haven't had any trouble with humps or inclines any more than I normally would have. Just watch where you drive and be careful.
NOT Free. But if you have a one-time, or very occasional need to look up something in the Service Manual, you can get 3 days of access for $20. Beats paying $325 for the full set of printed books if you just want to check one or two things.
Edit: Some additional information:
The GM Tech site...
Replacing the original battery in our C7s is a relatively easy job, especially once you first know what needs to be done. It will take you about 30 or so minutes. The only tools you will need are a flat head screw driver, 10 mm and 13 mm sockets, and some means of lifting out the original...
Just finished a 2200 mile (26.8 mpg; 63 mph average speed!) and when I used the windshield washer to remove the bugs that had committed suicide, I noticed that the washer fluid for the passenger side was shooting out the end of the wiper arm. I don't know what is missing and I can't find...
I checked the forum and read up on the Ranger method of replacing the clutch fluid. A very simple process that I did today. So I guess with the trans, diff and clutch fluid all changes up I'm caught up on maintenance for my '16 with 61,000 miles on it.:)
So with just over 60,000 miles on my Z51 manual transmission C7 I thought I would do a fluid change.
Those here helped with how to do it and the OEM fluids and quantities.
I must add though that getting a ratchet on the Diff 'fill' plug was the most demanding. Hiding up there behind the...
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