This kit comes with everything you need to replace your springs, pulleys, fasteners, cables, screws and bolts...
The strength of the springs is adapted according to the width of your door.
Example of a completed installation :

Content of the set:
2 shoes + 2 M8 bolts
2 bottom sectional castor supports L&D
2 castors with ball bearing rod Ø11
2 remote cable hooks L&D + extension cable
10 sheet metal screws 6.3x25
2 mobile nylon pulleys Ø50
2 fixed Ø70 pulleys mounted on a support with perforated cable hooks
2 cables Ø3 with loop L7m
4 springs adapted to the size of your door
To install it on your door:
BE CAREFUL TO MAKE SURE THE DOOR IS OPEN AND LOCKED, SPRINGS REMOVED !!!
Attach the hanger shoe to the back of your horizontal rails
Attach the 70mm pulley and its support to the front of your rails.
Remove old cables and bottom bracketsroller
Attach the new bottom bracketsroller
Hook the springs to the movable pulley and the shoe
Pass the cable loops to the lower wheel supports, then Ø70mm pulley, Ø50mm mobile pulley and hang on the perforated bar.
Test spring balance and tension
This kit is an "adaptation" kit, not universal, it is possible that, depending on the design of your door, the assembly may need to be slightly adapted.
Porte de garage Wayne Dalton
Suite à la rupture des ressorts de torsion de ma porte Wayne Dalton (4 mètres de large), j'ai utilisé le kit de remplacement. Livraison en 72 heures, explications claires, pose réalisée en 2 heures (sur les conseils d'Axone-Spadone, je n'ai pas remplacé les roulettes, j'ai aussi conservé les accroches des câbles sur la porte et la poulie fixe existants. Fonctionnement parfait après réparation.