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Is this hardware or equipment the same specs as garage door springs and pulleys? | The Replacement M-3 Universal Mounting Kit for Conventional Ramp Door Springs # M389FR is only rated for use with M-3 conventional ramp door spring kits and hasn't...

How deep are the mounting brackets? Thank you. | The mounting brackets for the Conventional Ramp Door Spring # M364FR are 6-1/4" deep and 4" wide. |

Could you tell me the wiring of the lights | The Exterior LED Utility Light part # M337FR has three wires, one for power, one for ground, and one for neutral. I spoke with M-3 and they informed me that the light follows EU Wiring Specifications...

what are the technical functions of the cables? i.e. for stability only, to hold door shut, to help opening door , etc. Thx | The cable part # CAB1-8CB150 is a replacement for springs like # CB250D96SHD which is designed to help make raising...

My question is can the duel spring 81inch ramp spring assay be cut down for a 60inch ramp door. | According to my contact at Redneck Trailer Supply the M-3 Enclosed Trailer Ramp Spring # ERS120D81 can be cut down to a reduced length, so this...

I need a ramp door spring for a toyhauler camper.It measures 74 1/2 inches from the outside of the mounting brakets that are around the bar.What procduct do I need?Thanks | The dimensions you listed for your ramp spring door mounting brackets...

Is the unit water proof of does water get into box | The Locking Floor Mounted Storage Box for Enclosed Trailers # M387FR is not waterproof. The latch and lid were not designed to be waterproof as it is to be mounted inside an enclosed trailer....

I have a haulmark 7 by 14 enclosed cargo trailer. The assist assembly is approx 76 inches wide. Do you have or suggest a product that fits that width? what is the distance between the mounting brackets on the 81 dual spring ramp assist assembly...

How long are the cables for item #M374FR? | I went out to the warehouse and measured the cables included with the Conventional Ramp Door Spring # M374FR and found them to be 150" in length. |

Can you get the cables in a different length? | We unfortunately do not carry additional lengths of the cables included with the Conventional Ramp Door Spring for 7' Wide Enclosed Trailer # M374FR, but you could definitely find some at your...

I am building ramps for my box truck and will require springs to help lift them. I figure one ramp is approx #800 and the second is #300. Ramp 1 is 60” wide and 10ft long, the second is 34” wide and and 10ft long. The ramps are bifold. What...

9500468 M-3 Enclosed Trailer Ramp Conventional Springs - Dual Spring - 160 lbs - 94 Hello , My trailer door spring is going bad and has only one spring door system . My door is 80 inches wide with inside opening of 78 inch. I would like to...

Hi, Im looking to convert a double door to a ramp door on a 6x12 trailer. Not really sure how to go about this. Is the easiest solution to buy a ramp door? Do you sell them? Or is it possible to use the double doors as the ramp? Thanks,...

Hey,I just bought some drums for my spring on my enclosed trailer and I’m having a an issue with installing it. I believe I have found the issue. Do y’all sale the bushings separate from the spring mount? | The Replacement M-3 Universal Mounting...

How do I connect the wiring for the M337FR | To connect the wiring for the Exterior LED Utility Light # M337FR you need to connect the following wire colors to the following functions: Blue - Negative Brown - Positive Red - Switch |

Ramp Door Spring Assembly ? My Ramp Door weight is around 125 to 130 lbs. using a bath room scale and the Door opening is 88inch wide. Would 362SA8207 be the correct assembly for my door ? Can it be narrowed down to 88inch ? | The 120-LB...

I need some info about ramp door springs. My enclosed trailer has garage door springs over head and they are frequently breaking. I wand to add the trailer ramp springs. I see part number RS16933RH My hinges have much smaller hinge pins,...

This is the correct torsion spring for my trailer. A Haulmark 7x16 enclosed trailer. However, all I need is a set of the door cables. Do you sell those separate for this this spring? | We do offer cables alone for enclosed trailer ramp torsion...

with the cable unraveling from the bottom of the spool when opening the door... does the spring tighten or loosen relative to the end of spring attached to the mounting bracket? thank you........ | On a torsion spring like that on # CB250D96SHD...

Im replacing a single spring system [150 lbs spring] and would like to go with the double spring 230 lbs system due to increase of weight on the ramp. My dimensions are as follows: 82.5inch between mounting brackets 89.75inch from outside...

2005 road force by wells cargo trailers my bar that holds the springs measurses 87 3/4 the space from out to out of cable wheels is 83 3/4 does this spring assembly 96inch work or there is a diferrent one that you do have ? | The closest ramp...

Will this product work with our door? Our door is about 200lbs in weight and 72inch wide. | You'd need a wider setup like the # ERS120D81 since your ramp door is 72 inches wide. The ramp spring you mentioned is for 6 inch wide doors so you'd...

what spring will lift a 133 lb. door on the cargo trailer | The M3 Enclosed Trailer Ramp Spring, part # CB250D96SHD offers a 250 lb capacity, and is 96 inches long, and would be sufficient for the weight of your door. Depending on the width...

I HAVE 24 F00T ENCLOSED TRAILER ITS 89 INCH ramp spring END TO END CAN I CUT A DUALSPRING 96 IINCH DOWN TO FIT | Yes, you can trim down the 96 inch long ramp spring # CB250D96SHD to work in an 89 inch space. I have linked a video review of...