mfg Posted February 4, 2022 Report Share Posted February 4, 2022 The steering pitman arm for a ......?...... with power steering is the same as the steering pitman arm for a Studebaker Avanti with power steering. 1) '59 Lark......2) '63 GT Hawk......3) '64 Daytona....or....4) '60 Lark Link to comment Share on other sites More sharing options...
64studeavanti Posted February 4, 2022 Report Share Posted February 4, 2022 IIRC, the GT Hawk and Avanti both use similar Ross steering boxes. So, I say 2) '63 GT Hawk. Link to comment Share on other sites More sharing options...
mfg Posted February 4, 2022 Author Report Share Posted February 4, 2022 14 hours ago, 64studeavanti said: IIRC, the GT Hawk and Avanti both use similar Ross steering boxes. So, I say 2) '63 GT Hawk. Good thought, but that's not the one that fits! Link to comment Share on other sites More sharing options...
r1lark Posted February 5, 2022 Report Share Posted February 5, 2022 I couldn't find any of the part numbers that matched the Avanti pitman arm. Link to comment Share on other sites More sharing options...
mfg Posted February 5, 2022 Author Report Share Posted February 5, 2022 1 minute ago, r1lark said: I couldn't find any of the part numbers that matched the Avanti pitman arm. Can't answer that....however, one of the above four choices is a direct interchange. Link to comment Share on other sites More sharing options...
Dwight FitzSimons Posted February 6, 2022 Report Share Posted February 6, 2022 1964 Daytona. I reason that the '59 & '60 Lark arms probably are the same. --Dwight Link to comment Share on other sites More sharing options...
mfg Posted February 6, 2022 Author Report Share Posted February 6, 2022 8 hours ago, Dwight FitzSimons said: 1964 Daytona. I reason that the '59 & '60 Lark arms probably are the same. --Dwight Sorry, '64 Daytona pitman arm will not fit! Link to comment Share on other sites More sharing options...
mfg Posted February 6, 2022 Author Report Share Posted February 6, 2022 ANSWER.....A 1960 Lark power steering pitman arm is a direct interchange on a Studebaker Avanti....whether the Avanti has a manual steering box or a power (quick ratio) box. Link to comment Share on other sites More sharing options...
brad Posted February 7, 2022 Report Share Posted February 7, 2022 Later post 61 Saginaw recirculating ball boxes have three spots on the pitman arm that have no splines so they only fit one way. I have broached splines in them and made them work. The pre 61 Larks had Ross steering boxes also. The Hawk pitman arm is longer and will change the steering ratio if used. Link to comment Share on other sites More sharing options...
Dwight FitzSimons Posted February 7, 2022 Report Share Posted February 7, 2022 9 hours ago, brad said: Later post 61 Saginaw recirculating ball boxes have three spots on the pitman arm that have no splines so they only fit one way. I have broached splines in them and made them work. The pre 61 Larks had Ross steering boxes also. The Hawk pitman arm is longer and will change the steering ratio if used. Would a Hawk pitman arm installed on an Avanti quicken the steering or slow it? Just trying to "think like a lever" I would guess it would quicken it. --Dwight Link to comment Share on other sites More sharing options...
pantera928 Posted February 7, 2022 Report Share Posted February 7, 2022 On 2/6/2022 at 7:27 AM, mfg said: ANSWER.....A 1960 Lark power steering pitman arm is a direct interchange on a Studebaker Avanti....whether the Avanti has a manual steering box or a power (quick ratio) box. I should have looked at this sooner. I knew the answer! Link to comment Share on other sites More sharing options...
mfg Posted February 7, 2022 Author Report Share Posted February 7, 2022 3 hours ago, pantera928 said: I should have looked at this sooner. I knew the answer! Better late than never!! Link to comment Share on other sites More sharing options...
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