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  • #1

    LT1 brakes >> 3rd Gen

    I did a search on this site and TGO and did not come up with much. The question is "Will the front brakes off of my 3.8L Firebird fit my '86 TA? " I read that LT1 brakes are a different design and would not fit a 3rd gen. Why? Does that include V6 and V8 or just V8 brakes? Are the spindles different? If LS1 brakes fit a 3rd gen why couldn't 93-97 brakes be done?

    I realize that this is not much of an upgrade but I am changing the brakes on my '97 and I need new Calipers on my '86.
    Tags: &gt, 3.8l, 3rd, 3rd gen, 4th gen, 93-97, brakes, calipers, changing, design, firebird, fit, fro, front, gen, hat, ion, ls1, lt1, question, read, rear end, search, spindles, suspension, time, upgrade
  • #2
    The front suspension is dramatically different between the 3rd gen and the LT1 style. Not to mention, you are doing all the work to swap the parts in just to put in single piston calipers. You'd be better off just buying replacement calipers for the '86, since you would be pouring time and money into a swap, the results of which would be negligible.

    There's a reason nobody swaps LT1 brakes onto 3rd gens, those results are just not worth the hassle. Not to mention, your '97 didn't stop worth a crap with those brakes on it, why would you want to put them on a car that's going to eventually be even faster?


    I found the information to give you that answer in less than 5 minutes using Search on TGO.
    Nick H.
    Current MIFC Vice President

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    • #3
      Im doing a 4th gen rear end swap from stock 3rd gen drums to 4th gen rear disks. As for the fronts Im leaving them stock for now. Just a thought, after market kit might be better and bolt on saving yourself some time.
      '91 Camaro Modded, LSx, House of Kolor Intense White, lowered, GS chrome 18" wheels, 14" Brembo CTS-V on all 4 corners, LS rear end, FP suspension components

      " When in doubt...throttle out ! "
      ENVYsion Entertainment Group

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      • #4
        Originally posted by Gregs_gsxr View Post
        Im doing a 4th gen rear end swap from stock 3rd gen drums to 4th gen rear disks. As for the fronts Im leaving them stock for now. Just a thought, after market kit might be better and bolt on saving yourself some time.
        Are you swapping the whole rear end? Just remember, the 4th gen rear end is 2" longer on each side...
        Nick H.
        Current MIFC Vice President

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        • #5
          they make kits to bolt on LS1 front brakes. They modify the spindle and machine the hubs to allow the ls rotor to adapt. I have em on my car.
          -08 G8 GT DD: Rotofab CAI, HID's, Breyton Race GTS'
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          • #6
            Originally posted by shawnc16 View Post
            they make kits to bolt on LS1 front brakes. They modify the spindle and machine the hubs to allow the ls rotor to adapt. I have em on my car.


            This is the best way to go, IMO, unless you want to spend big bucks and hit up some SSBCs, Wilwoods, Baers or Brembos...
            Gone but not forgotten: 1986 Chevrolet Camaro IROC-Z

            "You shall ride eternal. Shiny and chrome."

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            • #7
              Originally posted by 93formulalt1 View Post
              Are you swapping the whole rear end? Just remember, the 4th gen rear end is 2" longer on each side...
              its it 2" longer on each side or 2 inches total, that I cant remember... either way it works and looks great, plus Im going from stock drums to dics.
              '91 Camaro Modded, LSx, House of Kolor Intense White, lowered, GS chrome 18" wheels, 14" Brembo CTS-V on all 4 corners, LS rear end, FP suspension components

              " When in doubt...throttle out ! "
              ENVYsion Entertainment Group

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              • #8
                Originally posted by Gregs_gsxr View Post
                its it 2" longer on each side or 2 inches total, that I cant remember... either way it works and looks great, plus Im going from stock drums to dics.
                From what I remember reading on TGO, it's 2" longer on each side.
                Nick H.
                Current MIFC Vice President

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                • #9
                  I was just looking over there and thats right
                  '91 Camaro Modded, LSx, House of Kolor Intense White, lowered, GS chrome 18" wheels, 14" Brembo CTS-V on all 4 corners, LS rear end, FP suspension components

                  " When in doubt...throttle out ! "
                  ENVYsion Entertainment Group

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                  • #10
                    Great answers everyone. That was pretty much what I had thought but I was looking for confirmation. I will just buy some reman calipers and call it a day and trash the V6 Calipers. Hopefully I could reuse the rotors some how since the are brand new Drilled and slotted.

                    Thank you guys.
                    Last edited by phoenix_rising; March 30th, 2011, 01:17 PM.

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                    • #11
                      Originally posted by Gregs_gsxr View Post
                      I was just looking over there and thats right
                      yeap two inches wider on each side, what type of wheels do you plan on running? If 4th gen wheels dont forget front spacers for the car...
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                      1992 Chevy Camaro 25th Anniversary-SOLD
                      1992 Chevy Camaro 25th Anniversary
                      1997 Chevrolet Corvette

                      The Original
                      Originally posted by meissen
                      I actually agree with Darren on everything he said...
                      Originally posted by 81DaytonaPaceCar
                      Yep, pretty much...not too often I agree 100% with Darren, but there it is...


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                      • #12
                        Originally posted by shawnc16 View Post
                        they make kits to bolt on LS1 front brakes. They modify the spindle and machine the hubs to allow the ls rotor to adapt. I have em on my car.

                        you got a link to where you got those?
                        94 V6 A4>>>>LT1 M6>>>>>>383 M6 13.1 @ 109 2.2 60' Sold/Stripped
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                        • #13
                          Originally posted by Darren View Post
                          yeap two inches wider on each side, what type of wheels do you plan on running? If 4th gen wheels dont forget front spacers for the car...
                          you know it, just not sure if I should go with 1.5 or 2" spacers up front.
                          Im thinking these :
                          http://www.oewheelsllc.com/Wheels-fo...-p6902276.html
                          or these:
                          http://www.oewheelsllc.com/Wheels-fo...-p6902370.html
                          or these:
                          http://www.oewheelsllc.com/Wheels-fo...02147-2-1.html
                          Last edited by Gregs_gsxr; March 30th, 2011, 11:03 PM.
                          '91 Camaro Modded, LSx, House of Kolor Intense White, lowered, GS chrome 18" wheels, 14" Brembo CTS-V on all 4 corners, LS rear end, FP suspension components

                          " When in doubt...throttle out ! "
                          ENVYsion Entertainment Group

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                          • #14
                            i have ls1 brakes on all 4 corners as well. did the 4th gen rear, and wheels and 2" spacers up front works good.. plus i have the ls1 master on it which helps alot. can stop on a dime now.
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                            • #15
                              I'm guessing the LT1 brakes are a pita to use because of the ear on the spindle they mount to correct?

                              2011 Mustang GT
                              20" Satin Black AMRs with 305/35 & 275/35 MT Street Radials, Saleen Grille, CS Lower Valance, Roush Axleback, GT500 Spoiler, resonator delete

                              In Progress: Brembo 6-piston brake upgrade


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