Indexing springs
#1
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Car: Camaro
Engine: 350 Tpi
Transmission: 700r4
Indexing springs
Curious. What' the point of placing the tail end of the spring in between the 2 drain holes ? When their is a grove just past the 2nd drain hole that stops the spring from going any further . Is it to give room for the spring to settle?
#3
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Indexing springs
The holes allow water to drain from the arm and not rot the spring and arm out.
#4
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Re: Indexing springs
The ends of the spring are not flat, they will not sit flat in the pocket and the arm sits at an angle to the spring, so depending on where the end of the spring is the car will sit at a different height. The indexing holes give you a way to line the springs up within about an inch, ensuring even heights and loads side to side.
It has nothing to do with draining water.
It has nothing to do with draining water.
#5
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Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Indexing springs
If I'm wrong I apologize, it's something I read years ago as an extra function of the holes.
#6
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Re: Indexing springs
Regarding the inspection drain holes. From my 85 shop manual:
After assembly, end of spring coil must cover all or part of one inspection drain hole, the other hole must be partly exposed or completely uncovered.
JamesC
After assembly, end of spring coil must cover all or part of one inspection drain hole, the other hole must be partly exposed or completely uncovered.
JamesC
Last edited by JamesC; 05-13-2018 at 08:22 AM.
#7
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Car: Camaro
Engine: 350 Tpi
Transmission: 700r4
Re: Indexing springs
Thank you . Just finished my spring install and the tail end sits just before the 2nd hole
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