Older GRT Upper A-Arms

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  • LateModel B23
    Senior Member
    • Oct 2012
    • 283

    #1

    Older GRT Upper A-Arms

    Helping someone with an older GRT that has LF16 5/8 & RF17 5/8 lowers. Are both uppers supposed to be 10" mounted inside the uprights? Any other options, changes or otherwise?
  • rubbinsracin
    Senior Member
    • Aug 2009
    • 668

    #2
    our old grt....i think it was an 01 had 10" outside mounted on both tops but after some experiments...mostly because we broke an a arm and we didnt have our (not a nice word)(not a nice word)(not a nice word)(not a nice word) spares in the trailer...i'll take the blame for it...we ran an 8.5'' with a 1.5'' spacer on the rf upper with a 25lb stiffer spring and it was much much better when i threw it in the corner low, however, when i was up high i much rather would have had the 10''

    there was a couple of night where we did nothing to the car but switch upper lengths and put a different RF spring on when the track started going from high to low or low to high.

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    • sj valley dave
      Senior Member
      • May 2007
      • 1016

      #3
      Depending on how old your GRT is...The stock upper A Arms were 10", both mounted on the inside of the uprights...this was with the 16 5/8 LF and 17 5/8 RF lowers...We have gone to a 11" LF upper with spacers to give us more adjustability for positive camber and we run a 7 3/4" RF upper with a 19" lower on the RF...The car turns so much better anywhere he wants it to go...

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      • LateModel B23
        Senior Member
        • Oct 2012
        • 283

        #4
        Thanks, most of GRT notes got destroyed by a water leak and the memory on some things just ain't what it used to be.

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        • hpmaster
          Banned
          • Aug 2009
          • 1088

          #5
          Originally posted by sj valley dave View Post
          Depending on how old your GRT is...The stock upper A Arms were 10", both mounted on the inside of the uprights...this was with the 16 5/8 LF and 17 5/8 RF lowers...We have gone to a 11" LF upper with spacers to give us more adjustability for positive camber and we run a 7 3/4" RF upper with a 19" lower on the RF...The car turns so much better anywhere he wants it to go...
          My old GRT did turn much better with the second frt end Dave listed also.

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          • Snight
            Junior Member
            • Dec 2012
            • 2

            #6
            Dave, have u had any problems with inside of upper getting into the shock with this combination

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            • sj valley dave
              Senior Member
              • May 2007
              • 1016

              #7
              Nope...We do run Penske mono shocks and the body's are not very big...Also we run threaded upper ball joints as the A Arm gives you more clearance than a bolt in type...

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              • hpmaster
                Banned
                • Aug 2009
                • 1088

                #8
                I had no clearance issues using the bolt in upper ball joint and both Integra and AFCO M2 shocks.

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