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  1. 1 point
    Dark Ride

    Big brake upgrade differences

    Any 96-99 Lumina will have what you need and they are at least somewhat common in the yards here in central mn. Definitely upgrade the other side to match. Don't downgrade.
  2. 1 point
    55trucker

    Big brake upgrade differences

    Yes I am.......no change in their castings at all to simply improve on the front braking ability GM just installed a slightly larger rotor. To do that they had to move the caliper outward to relocate it in the appropriate position for the larger rotor. But really, when this platform 1st arrived there were droves of cars coming back to the dealers with brake issues. My 1st two GP's were no different, the cars would not stop very well in panic situations. The brakes are/were too small (front & rear rotors & rear caliper pistons), the boosters were substandard, there was an 1/8" air gap between the booster & the master cylinder pushrod, the diagonal opposed brake lines at the master sound good in theory but in a practical sense BOTH front calipers need to be driven off the same primary piston not split between the one primary & the secondary as the lines were installed, all tied together make for horrendous brakes.
  3. 1 point
    55trucker

    Big brake upgrade differences

    Any one of the 1st gen W's 94-96 & also the 95 thru 99 Monte Carlo will have the strut you're in need of. I'm inclined to think the later cars would be easier to find than the older cars. I too am looking for the later struts for a brake upgrade to my 91, but it means a trip south of the border to where they still can be had, there are none at all up here.
  4. 1 point
    55trucker

    Big brake upgrade differences

    More information is needed, what year is your car? '92? is the replacement front strut taken from a 94 -96 vehicle? if so the mounting for the calipers are different, the later strut allows an 11" front rotor, the earlier cars (88-93) are fitted with 10.5" rotors. The caliper bracket & the calipers are the same, the only difference is where the later struts stamped welded bracket flange locates the caliper bracket to move it further away from the centerline of the rotor/spindle to accommodate the larger rotor dia. If the shop that did this tried to use the 10.5: rotor mounted to the hub where an 11" rotor should be the pads will not be in the proper location on the rotor contact surface. To correct this you will need to install a proper 11" rotor to that repaired side. This is also going to upset the braking force to the front wheels as well. The smaller 10.5" rotor will not deliver the same amount of braking torque that the 11" rotor will. The larger the diameter of the rotor the greater the braking torque will be. You will need to do the same mod to the other side to equalize the braking torque to both wheels. The shop that did this should've seen that something was visually incorrect when they re-installed the pads & could see that they were out of place.
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