Shock location questions
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You guys may have no idea, but what the hell anyway. I need to know your thoughts on the placement of rear shock absorbers on a street/strip car.. err.. truck actually.
Ok, i'm putting an 8.75" in my Dakota. The stock rear has brackets on the axle tubes so the shock mounts straight up and down. That also seems to be the case with most trucks. The 8.75 setup, and also in most cars, has the shocks angled inward at the top. I'll obviously be making custom mounts when the rear gets in, but what's the difference?
Do trucks have them vertical because they need more up and down dampning to help control the back when its loaded? And cars have them angled to help more in corners when the car leans? Or is it only for clearance issues since cars are more cramped in the back?
Also, if i make new upper mounts so i can mount them at angles, how do i decide how far in to put the tops? Do I lift the frame of the truck so the suspension is hanging, then fully extend the shocks, and find a mounting point? Or let the truck sit on the ground, compress the shock half way, then fit?
Ok, i'm putting an 8.75" in my Dakota. The stock rear has brackets on the axle tubes so the shock mounts straight up and down. That also seems to be the case with most trucks. The 8.75 setup, and also in most cars, has the shocks angled inward at the top. I'll obviously be making custom mounts when the rear gets in, but what's the difference?
Do trucks have them vertical because they need more up and down dampning to help control the back when its loaded? And cars have them angled to help more in corners when the car leans? Or is it only for clearance issues since cars are more cramped in the back?
Also, if i make new upper mounts so i can mount them at angles, how do i decide how far in to put the tops? Do I lift the frame of the truck so the suspension is hanging, then fully extend the shocks, and find a mounting point? Or let the truck sit on the ground, compress the shock half way, then fit?
I don't think it really matters, and truth be told lots of things are done for packaging reasons. I would say stick with the way they are on the Dak now and just mount them straight up and down.
Only thing I can think of is maybe they angle them forward for some reason having to do with weight transfer.
Only thing I can think of is maybe they angle them forward for some reason having to do with weight transfer.
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Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Guest
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shock placement DOES matter somewhat... a lot of trucks/SUVs also put one in the front, one in the back which helps for wheel hop/axle stability.
I would actually prefer to angle the shocks in on the dak if there's no difference. Since my lower mounts will be by the springs, the uppers will go into the frame which sux0rs.
I would actually prefer to angle the shocks in on the dak if there's no difference. Since my lower mounts will be by the springs, the uppers will go into the frame which sux0rs.
Originally posted by FearThe4Doors
shock placement DOES matter somewhat... a lot of trucks/SUVs also put one in the front, one in the back which helps for wheel hop/axle stability.
shock placement DOES matter somewhat... a lot of trucks/SUVs also put one in the front, one in the back which helps for wheel hop/axle stability.
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Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Originally posted by FearThe4Doors
no clue... just what ive been told
no clue... just what ive been told
J/K

Darn, now I want to know
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Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
Patrick
05 SRT-4: Daily Driver, 11.9@117.4
88 Aries: 2.2L Turbo (Powered by Megasquirt II)
They mount them sideways to help dampening through corners, and to give the shocks a longer stroke over a shorter distance. If the shocks were straight up and down, the tubes would be shorter, making less room for internal baffles for the oil, or gas, or whatever is in the shocks to help with the dampening. When the shock compresses at an angle, it moves farther to cover the same amount of distance, increasing the dampening effect. It also controls side to side movement of the axle, if the axle sways side loading the leaf springs, the shocks compress and expand, where a vertically mounted shock would just load up the bushings.
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Honestly... it's a 318.
Honestly... it's a 318.
But anyway, if you're gonna use a pinion snubber or slappers, you don't need the one in front one behind deal, just fab up a cross member and mount the shocks sideways. Make sure you align the shock through bolts perpendicular to the axle is you go with the sideways idea, parallel to the axle if you go straight up and down.
__________________
Honestly... it's a 318.
Honestly... it's a 318.


