Question on Sagging Trailing Arm...
"Damn Yankee", not to say it isn't messed up, but I did have a whole new rear diff put in probably 8-10ish years ago when I changed the rear end to a 3.70. New gears(obviously), bushing, fluid, the whole 9 and it drives and seems fine.
Great news is that I said before...didn't appear that I was going to have to cut the bolts out...and in fact, took a hammer and a punch and she came right out. Guess I'm super lucky after reading and hearing everyone else's mishaps.
So next step in the process...I bought original GM trailing arms that are supposed to be delivered Monday. And to those who may ask why...honestly, they were fresh powder coated and had the bushing and sleeves already installed. Having to drop mine off to be coated and so forth, it was easier to just get new ones and then after the project is done, clean these up and put em on ebay or the "Parts For Sale" section for a few bucks. Gonna have quite a few leftovers when is comes to parts...Im sure someone can do something with them. That being said brings me to the next hurdle. Gotta get the old stuff off the old trailing arms, get em cleaned up and replaced if necessary and mount to the new arms coming in. Where do I begin? I think I read somewhere along the lines that taking the park brake springs out were a f'n nightmare? I took the cotter pin out of the one side and obviously that bolt wasnt budging. I went ahead and hosed er down with liquid wrench...bout time for another can after this project. My question is where do I begin at to disassemble these old TA's? And secondly, just thinking ahead...is there a way or method of holding these where the back(or front depending on which side your working on) wont spin when trying to break the bolts loose? This is what I'm looking at on my end...
I look forward to hearing back and getting this part knocked out. Gotta work all weekend but Monday is another day off which means the wrenches will be turning.
As always, I appreciate everyone's input and expertise thus far. This has definitely been a learning process for me!
Last edited by austinseanchris; Jan 4, 2020 at 12:10 AM.
Spindle Install Tool
Knockout Tool
*Side Note: And now I know why Vansteel completely rebuilt TA's are so expensive. I guess by the time you buy all the parts, put them all on, etc, you'd probably come out about even $ wise and dont have to mess with doing all of this...
2 do the new arms come with the 4 main studs that hold the bearing carrier (and just about everything else ?
3 also some shims for the set -up of the bearings - preload and a set -up tool , or can you borrow one ?
looks like Russel's are using a nylon washer on the front brake lines instead of good old copper
Last edited by bazza77; Jan 4, 2020 at 02:21 AM.
2 do the new arms come with the 4 main studs that hold the bearing carrier (and just about everything else ?
3 also some shims for the set -up of the bearings - preload and a set -up tool , or can you borrow one ?
looks like Russel's are using a nylon washer on the front brake lines instead of good old copper

This is the new arms...
And lastly, no tools for set up of bearings(I assume you mean for the spindles?).
Look to the right of the jackstand cradle. Does that frame appear to be coming apart? Looks like the welds are broken. Maybe not.
Anyway, sure like to see you add some extra jackstands forward. Or even some cement blocks. Anything! Just in case of a primary jackstand failure.
That car will crush you.
I think that's just the shadow of the small part of the frame rail that sticks out 1/8 to 1/4 inch.
It's possible that the bushing/bolt is seized up on the passenger side not allowing full travel. You'll know if that's the case when you attempt to remove the forward trailing arm bolt.
That being said, over the last week, I've been working on re-assembling everything. Before I get knee deep into the issues that have arisen, let me make a few statements that may be beneficial to know. Anyone following this thread may remember I was all stock prior to this and I bought Van Steel's advanced slalom suspension kit. So, the original struts that I took out were put beside the new "smart struts" that are adjustable. I matched them up in length so they were the same and locked the nuts down. Secondly, I removed the original shims that were in the car when I removed the trailing arms. Since they were not rusted, I did not have to cut the bolt holding the trailing arm in the pocket. I unbolted it, pulled out cotter pins and slid the shim out. What I did was take the shims out on the drivers side and marked "Drivers Side Outer" & "Drivers Side Inner" and of course the same for the passenger side. I bought new SS shims and what I did was match the new shims up to the old ones and tape em together so they were the same in thickness just like original(or before starting this project). I did this to ensure nothing changed or moved and that while needing a new alignment, it shouldnt be way outta whack. I got everything back together yesterday afternoon. When putting the tire on, I kept hearing something rubbing. Low and behold, the park brake cable is rubbing on the tire on both sides. I checked the AIM justto make sure I routed the park brake and brake line through the same holes. Park brake is ran along outside of trailing arm while the regular brake line is running through inner hole. See pics below:
Drivers Side 1
Drivers Side 2
Passenger Side 1
Passenger Side 2
The cables were obviously not rubbing before...The way the cables are mounted/clipped to the frame underneath, I dont see where else they could go? Maybe I've done something dumb though...???
Next Problem...With this suspension kit, I was told that the long bolt with the cushions that hang down can be adjusted to change ride height. Call me stupid, but I went on youtube and watched some old VBP videos where they installed a similar kit on his 69 corvette. I remember when they got done, the bolts hung down a little lower which I thought looked a little funny, but did not interfere with the tire. On their setup, when on the ground, that bolt kinda angles inward slightly. According to them, the higher up to tighten the nut, the higher the ride height. The more you loosen the nut, the lower the car sets. To start, I tightened them down as much as I could and figured I'd lower later. Well, if you look on the drivers side, it kinda angles in like theirs and sits about an inch from the inside of the tire. On the passenger side, it goes straight down and sits about 1/4" off the tire(very close with no inward angle). Both bolts are tightened up as much as possible.
As you can see, there's a significant difference. And I was going to try to lower the car. Right now, she sits at 5.5" from top of the tire to start of wheel well. I'm wanting it at about 2.5". So I went to lower it, but I cannot fit a 13/16" wrench in the end of the trailing arm to keep it from spinning b/c of the added sway bar. Neither side do I have access to. So I'm hoping I've got something simple going on here but I've thrown in the towel for the day. I attached a full photo of the rear below. Being centered, you can see the inward bent to the drivers side bolt vs none on the right. I got to wondering if maybe I installed the new monospring the wrong way? But the instructions said nothing about one way or the other and it looked symmetrical to me so not sure on that. Nonetheless, as before, hitting the forum in hopes someone can guide me in the right direction. Thanks guys!
Last edited by austinseanchris; Feb 3, 2020 at 10:05 AM.
The Best of Corvette for Corvette Enthusiasts
the aftermarket rear sway bar is always going to be close.
you are better of with the shortened rear spring. Vansteel has them. there are 1/2" a side and 1'' a side shorter spring available.
If you want the car lower, back the adjusting bolts off a few inches, that will fix one of the problems
Bfit
Last edited by bfit; Feb 3, 2020 at 12:51 AM.
the aftermarket rear sway bar is always going to be close.
you are better of with the shortened rear spring. Vansteel has them. there are 1/2" a side and 1'' a side shorter spring available.
If you want the car lower, back the adjusting bolts off a few inches, that will fix one of the problems
Bfit
Last edited by austinseanchris; Feb 3, 2020 at 08:54 AM.
There should be no tension on the sway bar at rest, so you can unbolt it to get to the tops of the long spring bolts to loosen them. This is what mine looks like, for reference, with a 1" shortened VB&P spring, stock-style sway bar mounts (no swaybar connected), and Energy Suspension spring bushings.
There should be no tension on the sway bar at rest, so you can unbolt it to get to the tops of the long spring bolts to loosen them. This is what mine looks like, for reference, with a 1" shortened VB&P spring, stock-style sway bar mounts (no swaybar connected), and Energy Suspension spring bushings.
Van Steel's spring assembly/install instructions...
There should be no tension on the sway bar at rest, so you can unbolt it to get to the tops of the long spring bolts to loosen them. This is what mine looks like, for reference, with a 1" shortened VB&P spring, stock-style sway bar mounts (no swaybar connected), and Energy Suspension spring bushings.
your install has the adjuster bolts all most all the way up which will lift that car up , this is not the normal set up, the photos in post 74 are more the conventional set up for the adjusting bolts
Bfit
your install has the adjuster bolts all most all the way up which will lift that car up , this is not the normal set up, the photos in post 74 are more the conventional set up for the adjusting bolts
Bfit
Below I attached a pic of how my spring came with the aluminum plate attached...I installed it like this b/c I assumed it was the correct way...I didnt have a reason to remove and swap it to the top.
Last edited by austinseanchris; Feb 3, 2020 at 11:08 PM.
As far as park brake cable rubbing...they were clueless as to why it now rubs since tire size/wheel size hasnt changed and it didnt rub before? I did have an idea...not sure if it’ll help or not...I ran the cable under the trailing arm and then up through the outside mount when reassembling. I think Im gonna run it over the top of the t/a through the outer mount to see if it uses more of the cable(it should Id imagine).
And lastly, the spring bolts not matching. He stated to take all the slack out of the spring bolts to where theres only about 3/4” left sticking out under the nut. Then he said drive it a couple miles and it should settle and be correct. Got a busy weekend but am gonna try to knock it out Sunday afternoon...
Last edited by austinseanchris; Feb 6, 2020 at 01:26 AM.
As for the rubbing, I don't know if you can get the cable into the stock mounts if you go over the top, but it's worth a try. You may also try to bend the tabs just a bit, to have the cable run more towards the inside of the car. On my 79, the difference between rubbing and not was just bending the cable sheath itself. On my 80, I had Bairs weld new mounts onto the top of my trailing arms (vs. on the side) when they rebuilt them. If the easy way doesn't work, and you have a friend with a welder, the vendors sell the appropriate bracket.
Good luck!
As for the rubbing, I don't know if you can get the cable into the stock mounts if you go over the top, but it's worth a try. You may also try to bend the tabs just a bit, to have the cable run more towards the inside of the car. On my 79, the difference between rubbing and not was just bending the cable sheath itself. On my 80, I had Bairs weld new mounts onto the top of my trailing arms (vs. on the side) when they rebuilt them. If the easy way doesn't work, and you have a friend with a welder, the vendors sell the appropriate bracket.
Good luck!
















