View Full Version : diff not centered??
enjoi355
03-04-2009, 01:18 AM
so today i put my new summit stars with nittos on the rear, when i set the car down it looked like this
http://i54.photobucket.com/albums/g108/rbar06/Picture113.jpg
with this much clearance
http://i54.photobucket.com/albums/g108/rbar06/Picture116.jpg
i would like to have the tire centered in the wheel well, how could i do this??
by the way the car has eibach drag launch springs and spohn lca with umi relocation brackets
http://i54.photobucket.com/albums/g108/rbar06/Picture110.jpg
96lt1m6
03-04-2009, 02:31 AM
WOW!!!!!!!!!
You need to measure from the center of the rim front to rear on both sides. It definately looks like the axle is pushed back about a 1/2- 3/4".
Do you have adjustable lowers and tq arm?
enjoi355
03-04-2009, 02:45 AM
lowers are non adj. stock TA.... f**k, i think i might have to get the adj lcas, and i just got these about a week ago :( im thinking that for now i can either remove the relocation bracket or get new adj lcas. i noticed that after i installed the brackets, the rear moved back, i was browsing ls1tech and other people have had this same problem too
96lt1m6
03-04-2009, 03:08 AM
the relocation brackets should not change anything like that though. even if they did it should not be to that extreme! Pulling them off to check would not hurt. a club member of mine does have an issue similar to yours he has 18s w/305s from a lightning on his formula and the backside of the tire is about 1/4 or less away from the bumper cover however the tire will hit when it grows and he has STOCK suspension.
BLOWNDFIZ
03-04-2009, 08:32 AM
I can honestly say this is the first time I have ever seen that happen just by installing a different set of wheels and tires. How much taller are the new set vs. the others?
enjoi355
03-04-2009, 12:25 PM
well these are 28 in tires, the old ones were i guess 26 in, i really think its the brackets though caues after i installed them i saw that my old rims and ties were pushed back a little, but since it was a smaller tire i didnt worry about it
PipesTA
03-04-2009, 12:34 PM
I would check your relocation brackets. A few years back I had some welds fail on one of my brackets and the rear end would dance all over the place. The wheel was not centered on the wheel well either on the side that was broke.
enjoi355
03-04-2009, 05:47 PM
i checked them today but they seemed fine and switched back to my stockers, for now... did anybody else notice that their diff moved back a little after installing the relo brackets??
AChotrod
03-04-2009, 08:40 PM
Back to your stock tires or Control arm brackets? Are you sure your springs are seated correctly?
enjoi355
03-05-2009, 02:03 AM
back to the stock tires, i was lazy and didnt want to take the brackets out.. for sure the bottom of the springs are, i didnt really pay attention to the top of them though, ill check that out tom.
95LT1Z28
05-22-2009, 12:48 PM
I just installed lcas and reloc brackets and have this same problem. Did you ever figure out what was doing it?
proace4
05-22-2009, 02:52 PM
Same here... i just thought thats the way it was gonna be. how did you fix it?
IronOutlaw
05-22-2009, 11:19 PM
Im gonna keep an eye in this, Im upgrading suspension and was planning on getting some LCA brackets but if its gonna cause my rear to move Im just gonna wait and get some Adj LCAs with them.
1FASTSS
06-04-2009, 04:07 PM
Mine is not that bad but you need adj lca's to fix correctly. Try moving the LCA to the bottom hole on the bracket, that where mine is and its fine. My pinion out to +1* or so but the tires have clearance.
z28orshoot
06-05-2009, 01:25 AM
if the lcar brackets have the holes drilled in the proper arc of the lca the rear end should NOT move. the only way to correct YOUR situation is with adjustable LCA's. pinion angle should be changed with the TA only(pending EXTREAME) situations, not by the lca's.
96LT1355Z28
06-05-2009, 01:35 AM
if the lcar brackets have the holes drilled in the proper arc of the lca the rear end should NOT move. the only way to correct YOUR situation is with adjustable LCA's. pinion angle should be changed with the TA only(pending EXTREAME) situations, not by the lca's.
Agreed, as the LCA moves down it must also move forward otherwise the rear would be pulled towards the front of the car. If the holes are drilled properly the rear shoud not move forward or back no matter what hole you use. Hows it look if you put your LCA's in the stock hole?
1FASTSS
06-05-2009, 08:06 AM
The rear "should not" move but I have talked to Larry @ Speed about mine and he has mentioned they have seen brackets with the hole not correctly drilled out. I was offering that as a suggestion to get the wheels on. Of course you will need to adj LCA to make it correct but he could try moving the LCA and see if that moved the rear at all.
enjoi355
06-05-2009, 10:48 AM
i know in theory, if the holes are drilled in the proper arc, it shouldnt move... i had to go with some adj lca's to fix it
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