Rearend Install...Odd Problem
Rearend Install...Odd Problem Benn install my 8.8" over the weekend. All I need is to get a 1350 end on the driveshaft and I'll be ready to roll...or so I thought. I got to noticing that the rear sat up way high with the tires. I thought that there was something catching, not letting the rear go all the way up. I've adjusted the LCAs, PHR, and TA. Nothing has helped. So I took the jack and jacked up one side to see how far it would go. It went all the way up. Tried the other side, it went all the way up. Tried it middle on rearend, and it only went up a little. So I put a stand under one axles and tried to jack the other one up. No good. It's like it was in a bind. So I dropped the springs out and jacked it up from the center and that worked. It's up in there like stock, hell all the way to the bumper stops, but with out the springs.
What gives here??? It's almost like the stock springs are too stiff.
Anyway idea what could be causing it? I have put those damn springs in there every way and still the rearend will not go up in there like it should. But without them, the rear will go all the way up. Like the bind was lifted.
I need help! lol
What gives here??? It's almost like the stock springs are too stiff.
Anyway idea what could be causing it? I have put those damn springs in there every way and still the rearend will not go up in there like it should. But without them, the rear will go all the way up. Like the bind was lifted. I need help! lol
Well did you tighten the LCA mounting bolts up at ride height?
That can keep it up a little, I know that most cars will be higher with a new rear, not sure about the 8.8 .
Sure it's not the rear mod's (8.8) that are the problem?
That can keep it up a little, I know that most cars will be higher with a new rear, not sure about the 8.8 .
Sure it's not the rear mod's (8.8) that are the problem?
I will try messing around with the LCA bolts tomorrow. I know you must tighten them while you have load tho. But, as I said, you can take the springs out and it will go right up with a hitch. But no, this is not like 1" I'm taking about that you get with all the other rearends. This is like so high that you can stick your whole damn body under the rearend without jacking the rear up. The 8.8" use stock housing tubes so any increase in ride height should be no more than 1/2".
Will do. Tried to do it without the TA tho. I'll try PHR next. I'm sure it something simple. Just it's always a pain in the *** find it. FWIW, the springs will still "work". I can push up and down on the back off the car and it will bounce up and down. 
Sounds to me like you have a suspension bushing or something bound up if the axle uses stock spring pads and such. I would loosen both the front and back bolts for the control arms. Then losen the shock bolts alittle and see what happens. If that rubber bushing or poly just depends what style of stuff you have is bound up it will do that. My S10 rode like a SOB when I overtightened the shock bolts on the back.
I think I know where my bind is. I tightened the LCAs while the rearend was down, not while it was under load. I'm going to loosen all my bolts on everything and rise up on the center on the rearend to see what it does. I’ll do that after work today. If that does not work, I don’t know what the hell it could be.
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Originally Posted by Xerxes
I think I know where my bind is. I tightened the LCAs while the rearend was down, not while it was under load. I'm going to loosen all my bolts on everything and rise up on the center on the rearend to see what it does. I’ll do that after work today. If that does not work, I don’t know what the hell it could be.
The only thing I can think of, which isn't the greatest of news, is the axle tubes weren't mounted correctly to the center section. This could be a possibility, although unlikely.
When you have the springs in the car, and the suspension loaded, do the springs sit flush on the pirch or do they lean?
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Originally Posted by Damian
Richard, thats not your problem. I always tighten everything while the car is sitting on jackstands IE: supsension is not loaded. There is no differece in ride height between those two methods...
The only thing I can think of, which isn't the greatest of news, is the axle tubes weren't mounted correctly to the center section. This could be a possibility, although unlikely.
When you have the springs in the car, and the suspension loaded, do the springs sit flush on the pirch or do they lean?
The only thing I can think of, which isn't the greatest of news, is the axle tubes weren't mounted correctly to the center section. This could be a possibility, although unlikely.
When you have the springs in the car, and the suspension loaded, do the springs sit flush on the pirch or do they lean?
Spring set flush on the pirch, but they do lean a little. I think I know what it is tho. The ******* TA goin into the tranny. I noticed it slipped back out a little. Musted have happened when I was uninstalling the old rear. I have put it back to where it held on the old rear. The springs are not leaning as much now, but still the suspension will not load right. It looks like the TA may have to go in some more. I'm going to take the TA all the way out and then see if the damn thing will go up.
Originally Posted by Xerxes
I'm going to take the TA all the way out and then see if the damn thing will go up.
Interesting problem. I put my 8.8" in and it fit pretty well, the Torque Arm needed a good prybar and tightning the bolts at the same time that is the only issue I really ran across during installation. The ride height and everything were perfect. I have BMR Non-adjustable LCA's and a BMR non-adj PHR and stock springs for suspension. My springs are pretty wore though with like 94K on 'em maybe thats why it fit in so easily.
Keep us posted!
Keep us posted!
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From: Pewee Valley, KY
hey richard this is brad. when it comes to tightening up your lca's and panhard rod it doesn't matter if you do it loaded or unloaded because you have spherical rod ends and not rubber or poly bushings. if you tighten suspension components that have rubber or poly bushings when the suspesion isnt loaded and then lower the vehicle, you put a lot of strain on the bushing and it can actually destroy the bushing. that is the only reason for tightening your lca's and panhard bar when the car is loaded. now adjusting the torque arm is a different story. the car suspesion should be loaded when adjusting the torque arm so you get the correct pinion angle. if you have any question you have my number and if you dont (502)648-1093.
Problem fixed guys. Stupid me forgot that the I had jackstands under the front when trying to load the rearend. 
But she is working good. Now I just need to get me PCM back that LS1 Edit killed when it crashed.
Brad, I put a reply on the KY board for you. Thanks for your help man
But she is working good. Now I just need to get me PCM back that LS1 Edit killed when it crashed.Brad, I put a reply on the KY board for you. Thanks for your help man
Originally Posted by Xerxes
Problem fixed guys. Stupid me forgot that the I had jackstands under the front when trying to load the rearend. But she is working good. Now I just need to get me PCM back that LS1 Edit killed when it crashed.
Brad, I put a reply on the KY board for you. Thanks for your help man
But she is working good. Now I just need to get me PCM back that LS1 Edit killed when it crashed.Brad, I put a reply on the KY board for you. Thanks for your help man
Originally Posted by CANNIBAL
LOL, sorry man, that's hilarious. We've all done stuff like that before. I'm VERY glad it was something simple!
lol Yeah, it's pretty funny once you think about it
The only thing I really had on my mind was the PCM and getting it fixed. kp reminded me about the jack stands. 
I'm glad it was something simple too! Now once I get this **** running and break the rearend in, we will see how much she can take