- How to double winch line pull: run the line out through a block or ring on the anchor, then back to a rated point on your own truck. Two parts of line, roughly twice the pull.
- You pay for it in speed. A two-part line halves how fast the stuck rig moves.
- Take 10 to 15 percent off the top for friction before you decide the rig is strong enough.
- The anchor is the limit, not the winch. On a straight pull the anchor can see nearly double the line pull.
- Start at 1:1 and work up. The winch ring's own label caps you at 5:1 and calls 4:1 professionals-only.
1. Doubling Up in the Kerrville Flood Mud
After the floods in Kerrville, Texas, Rick's crew is pulling a family's work van and an old truck out of the mud and silt the water left behind. The van goes first. The first pull comes tight, and the van doesn't move:
"I'll tell you what, that sucker is in there. We're going to have to double our lines on this bad Larry. Didn't even budge. It's time to throw a couple snatch blocks on there."— We Drove 1,100 Miles For Our Biggest Rescue Yet… A Veteran Lost Everything
The lines get doubled, and the van still won't come. Rick's read on why: “This thing is just so full of mud and silt and everything else or it's lodged in there somehow.” So he changes the angle instead, backing up for some upward pull and grabbing it by the pillar and the frame rail to roll it loose. A few pulls later: “Oh, we got this old gal licked, folks.”
That's the part the math leaves out. Doubling the line buys pull. It doesn't change which way the load wants to go, and that van was lodged against a tree.
Later on the same trip, the family's old truck is covered by a sandbar in the river. On the re-rig, a winch ring does the doubling:
"We got a winch ring in there. We're doubling up some pulling power. We want that corner to come up out of everything. That's the corner I'm pulling on at the lowest point."— We Drove 1,100 Miles For Our Biggest Rescue Yet… A Veteran Lost Everything
Two doubled pulls on one trip: on the van Rick calls for snatch blocks, and on the truck a winch ring does the doubling. Either way it's the same job: doubling what the winch line puts on the load. That's the honest answer to "block or ring": whichever one is rated for what you're running.
2. How Two Parts of Line Double the Pull
A block or ring doesn't make your winch stronger. It splits the job. Everything else in this article follows from that one sentence — the same one behind Rick doubling his lines in the Kerrville mud.
Run the line straight from the drum to the anchor and one part carries everything. Run it out to a block and back to your own truck, and now there's two parts sharing it. Your winch only produces half of what's moving the vehicle. That's a sweet trade for one bit of hardware.
Zips AW Direct puts it at the working end: running winch lines back through blocks "can also increase the capacity of their winch lines. Oftentimes this doubles the pulling force."[1]
Grand Lifting puts a figure on the theory: a two-part line "halves the line speed but effectively doubles the winch's capacity, turning a 10,000 lb winch into a 20,000 lb pulling force."[2]
For the actual numbers a two-part line can produce, here's Rick running that same math on a different recovery, with two rated winches and a block on each:
"Got two 4,000-lb Warrior winches. And I've got a snatch block on each one of those, doubling its line pull to 8,000 lb per winch. Going to a Yankum 5:1. That multiplies that 8,000 by five on each side."Nobody Would Save This Small Business… So My Family Flew 1500 Miles
That's theory stacked on theory — a block doubling a rated winch, then a 5:1 ring system stacked on top of that. Nothing's frictionless, which is why the ring's own spec sheet puts friction loss at about 10 percent, and why you take a real number off the top before you trust any of this math on your own truck. So what do you do with the doubled figure? It's a ceiling you never quite reach.
3. Rigging It, Step by Step
BFGoodrich describes the standard double-line recovery in one sentence: "Instead of connecting your winch directly to the anchor point, run the cable through a snatch block (pulley) attached to the tree strap, then back to a tow point on your own vehicle. This setup doubles your winch's pulling force and reduces the strain on the motor."[3]
Here's the order, and you've got gloves on for all of it:
- Pick the anchor and protect it. Strap around the tree, or hook the stuck vehicle's rated point. The block or ring hangs off that.
- Check the ratings before anything's tight. Your recovery points, your anchor, your shackles. The anchor sees more than the pull.
- Run the line out, through the block, and back. On a ring with an offset hole, put the line through the hole rather than the groove on a 2:1 — it can't jump out when tension drops.
- Land the end on a rated point on your own vehicle. Not a bumper. Not a ball.
- Dampener over the line. "Place a recovery dampener (or heavy blanket) over the strap to reduce risk if the strap snaps."[3]
- Clear everybody, then take up slack slowly. Look at the whole rig under light load before you commit.
2.2 lbs, MBS 79,590 lbs pull-apart tested. Synthetic HMPE up to 7/16 inch only, on electric bumper winches rated 12,000 lbs or less. The offset hole means the line can't fall out on a 2:1 when tension drops. Machined 6061 aluminium, made in Idaho.
4. What It Costs You
Three things, and only one of them's obvious.
Speed. A two-part line "halves the line speed."[2] The stuck rig crawls, and on a long pull that's real time in whatever weather you're standing in. Nobody enjoys that part.
Rigging time. You walk the line out, hang the block, walk it back. Then you're doing it again when the geometry changes.
Load on the anchor. Here's the one that hurts people. Grand Lifting: "For a straight pull (180-degree angle), the force on the anchor can be nearly double the line pull. Always ensure the anchor point is rated for this higher force."[2]
So the block's the busiest thing in the rig. Line comes in, bends around, goes back out, and everything it hangs from feels both parts at once. Double your pull and you've roughly doubled what the anchor eats.
5. How Many Parts Is Too Many
The hardware will happily go further than you should. The ring's own warning is the clearest rule published anywhere on this, and it's worth reading twice:
| Setup | Pull | Line speed | Who should run it |
|---|---|---|---|
| 1:1, straight pull | Winch rating | Full | Start here, every time |
| 2:1, one block | Roughly double, less friction | Half | Standard practice |
| 3:1 | More again | Slower again | Only if the points are rated for it |
| 4:1 | Higher still | Slow | Professionals only — two rings, a safety catch sling and double loop 7/16" soft shackles |
| Beyond 5:1 | Not with this ring | — | Never |
The instruction underneath matters as much as the table: start at a single line pull and work up, because overload risk on your tow points climbs with every stage. Know those ratings before you start, not after something bends.
On that different job above, Rick ran a full block-plus-5:1 stack — two rated winches, a plan, and a lifetime of doing this for a living. That's the professional version of "go big": know every rating in the chain before you add a stage, not after. Copy just the ratio without that part, and that's how people get hurt.
6. The Gear to Rig It
So what's in the rig? A winch, something to bend the line around, a way to hang it, and a rated point to land on. Rick's put a matched pair of 4,000 lb Warrior winches behind this exact math before — the same rating as the portable Trojan, which the store's page calls Wrecker Rick's favourite portable winch.
2.2 lbs, MBS 79,590 lbs. Synthetic up to 7/16 inch, bumper winches 12,000 lbs or less.
Hangs the ring off the anchor. The 4:1 warning calls for double loop 7/16-inch shackles.
4,000 lb rated line pull in a carry case. No mounting needed, or bolt it to a trailer.
10,000 lbs on synthetic, inside the ring's ceiling. Thermal overload protection for long pulls.
Everything in a double line carries more than it looks like it does. Read this before you rig one.
- Know every rating before you start. Winch, line, block or ring, shackles, both recovery points, the anchor. The ring's warning says it's easy to exceed the rating of some tow points in these configurations.
- The anchor sees nearly double. "For a straight pull (180-degree angle), the force on the anchor can be nearly double the line pull. Always ensure the anchor point is rated for this higher force."[2]
- Work up, never start big. Begin at 1:1. Add a stage only if the whole system is rated for it.
- Never beyond 5:1 with the ring, and 4:1 is professionals only — two rings, a safety catch sling and double loop 7/16-inch soft shackles.
- Inspect the block first. It "must be visually inspected before every single use," and anything shock-loaded comes out of service.[2]
- Dampener on, everyone clear. "A good safety rule is to stand farther back than the full length of the winch line."[3] A double line has line on both sides of the block, so there's more to stay out of.
- Gloves, and never step over a loaded line. "Do not winch without gloves."[3]
Sources
- Zips AW Direct, "Get to Know Snatch Blocks." Verbatim 2026-09-19. zips.com/blog/get-to-know-snatch-blocks-their-uses-parts-and-care
- Grand Lifting, "How to Use a Snatch Block." Verbatim 2026-09-19. grandlifting.com/blog/how-to-use-a-snatch-block-for-industrial-lifting-and-rigging
- BFGoodrich Tires, "4x4 Driving Guide — Recovery Techniques," Double-Line Recovery. Verbatim 2026-09-19. bfgoodrichtires.com/auto/learn/4x4-driving-guide/recovery-techniques
- Offset Winch Snatch Ring product page — warning and friction figure. Fetched 2026-09-19. murphysdiesel.com/products/offset-winch-snatch-ring
Double the Pull, Respect the Anchor
One block, one walk back to your own truck, and your winch is doing half the work it was. That part's easy. The hard part's being honest about what everything else in the rig is rated for, because the winch is almost never what gives up first.