[Fot] TR-4 vertical link and trunnion

[Tony Drews]

THAT's it.  Left hand thread / Right hand thread.  Thanks.

OK, next question - If I switch from TR-4 to TR-4a (or TR-6) lower A 
arms, does that undo the lowering effect of the later trunnions?  My 
car is low enough already, and messing with spring spacers doesn't 
sound like any fun at all.  I've got two weekends before the next 
race to get this done.  It sounds like the later A-arms are a direct 
bolt on for the earlier car with the welded in lower frame 
pivots.  It may also eliminate the need for the reaming and 
spacers.  It would probably also eliminate the additional camber gain 
- not sure that's a plus, but everything else would be a positive.

Joe, your TR-250 front end is getting more attractive as we go along...  :)

Tony

At 10:41 AM 8/20/2012, Charly Mitchel wrote:
>My guess is the are L&R handed to keep from mixing them up.  The 
>trunnion has the castor built into them and if you tried to reverse 
>them the wheel would have opposite castor.  The threads on them are 
>also L&R handed and can only be assembled as a set L&R.
>Charly
>----- Original Message ----- From: "Tony Drews" <tony at tonydrews.com>
>To: "MadMarx" <tr4racing at googlemail.com>; <fot at autox.team.net>
>Sent: Monday, August 20, 2012 8:33 AM
>Subject: Re: [Fot] TR-4 vertical link and trunnion
>
>
>>I'm looking at a diagram of the TR-4 and TR-4a
>>front suspension.  On the 4A, the vertical link
>>is different for Left Hand side of the car and
>>Right Hand side of the car while on the TR-4 it's
>>the same part for both sides.  The trunnions are
>>"handed" too - right / left hand for both set ups (but are different parts).
>>
>>Why is the vertical link different from side to
>>side?  I'm not seeing the difference and want to
>>make sure I cover my bases if I make this conversion.
>>
>>Thanks, Tony
>>
>>At 10:08 AM 8/20/2012, MadMarx wrote:
>>>One thing:
>>>The car is getting lower with the TR6 trunnion.
>>>So maybe a spacer has to added to the spring.
>>>And the camber gain is increased.
>>>
>>>Cheers
>>>Chris
>>>
>>>-----Urspr|ngliche Nachricht-----
>>>Von: Tony Drews [mailto:tony at tonydrews.com]
>>>Gesendet: Montag, 20. August 2012 16:57
>>>An: MadMarx; fot at autox.team.net
>>>Betreff: Re: AW: AW: [Fot] TR-4 vertical link and trunnion
>>>
>>>That sounds like a good upgrade.  Is the upper ball joint the same?  Are
>>>there other changes besides using spacers between the Trunnion and the stock
>>>lower A-Arms?  Being able to remove the Trunnion without taking the A-Arms
>>>loose from the spring pan would be a good thing I've discovered.
>>>
>>>If you could send me a few pictures, I'd appreciate it.  I know they won't
>>>make it through the list, but I will get them if the message is addressed
>>>directly to me.
>>>
>>>Tony
>><snip>
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