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4a Trail Arm Bracket Bolt direction

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ShortBulge Avatar
ShortBulge Silver Member Brian LeBlanc
Falls Church, VA, USA   USA
Are the heads for the Trail Arm Bracket/bushing Bolts always facing toward each other?

...just did test fit and seems nut end of bolt was hitting frame on inside and Rocker/floor vertical on outside..

Roger Williams books says heads ..Have to face each other..

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ducbsa Bruce Metcalf
Berryville, VA, USA   USA
FWIW, this shows facing:

https://mossmotors.com/triumph-tr2-3-4/suspension-steering/rear-suspension-driveshaft-tr4a-irs

IIRC, mine only went together one way, so I was happy with that.

Reddragon Avatar
Reddragon Dale M
Chesapeake, VA, USA   USA
1963 Triumph TR4 "Road Runner"
1974 Triumph TR6 "Tweety"
Brian

The heads should face each other so that you can get the bolts out if you need to remove the trailing arms to replace bushings. Otherwise you have to remove the brackets along with the trailing arms.

Red

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ShortBulge Avatar
ShortBulge Silver Member Brian LeBlanc
Falls Church, VA, USA   USA
seems like my Nut-end was hitting, guess it must be me...

so Bruce, you,ve got #38 as in pic, heads pointing in

Red, yeah I get that...lot easier to switch out the poly-1/2's then old rubber!

...another note; 1 of the hubs is a LOT harder to turn than the other
maybe i'll run by London A and get an opinion...everybody's got 1 !

Geko Avatar
Geko Stef SG
Kuala Lumpur, WP, Malaysia   MYS
Factory assembly. They did it this way so the bolt won't come off if the nut drops.



Edited 1 time(s). Last edit at 2019-01-19 11:58 AM by Geko.


Attachments:
TA_bolding.pdf    168.7 KB

ShortBulge Avatar
ShortBulge Silver Member Brian LeBlanc
Falls Church, VA, USA   USA
Gek....Yeah, but isnt that ...Opposite from the Bolt heads facing each other

or..pic looks like bolts going in same direction, with both Nuts facing Outward...

Pic from Workshop Manual (Stand-Triump) .shows bolt head #8 facing out
so it "could" fall out if nut goes

...but it also talks about bracket with 4 grooves on outside and 2 on inside where i've got 2 on out and 1 on inside


Attachments:
TrailArmBlt.JPG    23.6 KB
TrailArmBlt.JPG

Reddragon Avatar
Reddragon Dale M
Chesapeake, VA, USA   USA
1963 Triumph TR4 "Road Runner"
1974 Triumph TR6 "Tweety"
Brain

This article from the Buckeye triumph club site may help you out.It explains the hows and whys of the brackets for rear end wheel alignment.

http://www.buckeyetriumphs.org/technical/Suspension/AdjRS/AdjRS.htm

Red

ShortBulge Avatar
ShortBulge Silver Member Brian LeBlanc
Falls Church, VA, USA   USA
Red - yeah, good article on alignment...
but as far as i know....4a's only had 1 & 2 notch versions
but what i know dont go that far!

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