I have been getting quotes from local companies to do this conversion and am a little disappointed. $1600 seems very high! I can source the parts and do it myself but I need to know what springs to use. I’ll be using the 400-54 drums. 27” of high lift and then following a 30 degree pitch for approximately 5 more feet. I am planning on using 12 foot cables. It has a single 34” spring on it now that gives perfect balance. Wood door 8x8. .243 coil, 2” ID. Not sure how many turns. I would like to use two springs in case one would fail. Can anyone help me on what springs I would need? Thanks.
Converting STD lift to High lift single door
- Thread starter Bler57
- Start date
Hot Rod Grampa
Well-known member
You will need to weigh the door to get a perfect spring. The supplier of your parts should be able to get the correct springs. I don't have access to that computer anymore. But be aware that while two springs are good, that door will be in the 250# range so if one fails, dead lifting 125# is still a hell of a tug.
bad_idea
Well-known member
[email protected]
Active member
Just had mine done $400
Radio Flyer
Well-known member
I have used them for torsion springs and Crawford conversions, Dan is great to work with.
HotrodHR
Well-known member
DIY... if you have the mechanical aptitude and can follow instructions.
eastbaysubaru
Well-known member
I was able to do mine myself but the springs were already there and I just reused them. I think $1,600 sounds outrageous. Good luck!
-Brian
-Brian
pattenp
Well-known member
Lightning rod
Well-known member
If you are using the original door, you can reuse the original torsion springs
Thats what i did.
The extension rail kit was ,IIRC , $100.it took the door to within 6” of the ceiling
You will need to go to a jack shaft opener. This was the most expensive part
Of the install
Thats what i did.
The extension rail kit was ,IIRC , $100.it took the door to within 6” of the ceiling
You will need to go to a jack shaft opener. This was the most expensive part
Of the install