Rear trailing arms frame bracket question.
#41
Mine not being bolted to car but having arms bolted to them I should be able to measure the clearance in some fashion. I might try to do that but not today. Appointments.
A typical M12X1.75 Torx seat belt bolt
Last edited by WVZR-1; 03-07-2018 at 06:02 AM.
#42
Le Mans Master
I would think you could swap the bolts to the rail with M12X175 Torx seat belt bolts, that would substantially reduce 'head height' and don't require a washer because of head diameter. Sufficient for larger Heim? I've no idea but I'd think ideal for most. Bolts would be an easy JY find.
Last edited by MatthewMiller; 03-07-2018 at 07:55 AM.
#43
I was wondering about something like this, too. I guess the big question if if those seatbelt bolts have any strength limitations, and/or whether one can safely torque them to the proper spec with their Torx head design. FWIW, the "head" of the rod ends that Banski uses (Aurora VCM-10 and VCB-10) are only 1.5" in diamter. I think that is actually a smaller diameter than the stock arm "heads." I can measure those later today.
An issue seems to be that the rods are actually located at 'depressions' in the bracket and there would certainly be limitations as to where they could be located. See SuperL98's snapshots in post#16
I checked mine this AM quickly, at first glance visually it seems to be an issue. Insurmountable? Likely not. That 'local' fella did!!
**Using 'centers' you'd want to locate which direction how much? That would determine the feasibility and the M12 bolt I suggested would certainly make it more feasible.
Last edited by WVZR-1; 03-07-2018 at 08:32 AM.
#44
Le Mans Master
An issue seems to be that the rods are actually located at 'depressions' in the bracket and there would certainly be limitations as to where they could be located. See SuperL98's snapshots in post#16
I checked mine this AM quickly, at first glance visually it seems to be an issue. Insurmountable? Likely not. That 'local' fella did!!
#46
I was measuring with flange head bolts, flange head nuts with brackets and arms assembled. Using 'east to east' side of exposed threaded ends of bolts gets interesting.
**I get the 'east to east' reference - I've a friend who might explain dimensions like that!
Last edited by WVZR-1; 03-08-2018 at 04:31 PM.
#48
Team Owner
Pro Mechanic
Not sure which spring you're talking about here (front or rear), but I thought I'd point out that only the front provides the anti sway properties. The way the rear is mounted in the C4, each side of the spring behaves like a normal, "independant" spring.
#49
Le Mans Master
ok, I will re-phrase that - if you take the rear leaf off and replace it with coilovers it changes a few things, the leaf reacts slightly differently to the coil springs during cornering, but mainly mounting coils in front of the axle and slightly inboard as opposed to a leaf mounted to the rear of the axle and out further on the hub changes wheel rates etc,
so if you replace the rear leaf with coilovers and your racing or driving hard - then you will most likely need more rear sway bar.
so if you replace the rear leaf with coilovers and your racing or driving hard - then you will most likely need more rear sway bar.
#50
Team Owner
Pro Mechanic
WHY?
Only if you lowered your rear rates. The rear spring, whether coil or leaf, both act directly on the knuckle. Wheel rate should remain identical if the spring rate is identical.
Only if you lowered your rear rates. The rear spring, whether coil or leaf, both act directly on the knuckle. Wheel rate should remain identical if the spring rate is identical.