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countdecash

Member Since: 14 Mar 2016
Location: dublin
Posts: 24

D44 winch bumper

Hi guys i've just bought a D44 winch bumper and it is a really solid piece of kit. The only thing i notice is that it has just the normal 2 bolts each side to mount it on the chassis. Will those 4 bolts take the strain of the winch when winching? Should i look at welding brackets to bolt in onto side of chassis as well?

17th Jan 2017 11:05am

taffrican

Member Since: 14 Jan 2011
Location: Living room
Posts: 622

Those 4 bolts are more than enough, you'd be amazed how much they could take, I really wouldn't bother strengthening anywhere else, besides, if Devon 4x4 supply the bumper like that then that's the way it's supposed to be, they really know their stuff

Optimists say the glass is half full..
Pessimists say the glass is half empty..
Engineers say the glass is twice the size it needs to be!

17th Jan 2017 11:10am

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

I've seen people install M12 bolts. This means you'd have to tap the captive nuts to that size.. Solved the bowel problem, working on the consonants...

17th Jan 2017 7:26pm

Mdm

Member Since: 11 Sep 2013
Location: Sunny Lancashire
Posts: 1523

we used to run d44 products on the comp cars as well as the road car.excelent quality gear
std mountings will be fine.

if in doubt give them a call or email jake with your query as they offer good free advice

17th Jan 2017 10:22pm

miker

Member Since: 13 Sep 2015
Location: Surrey
Posts: 1758

8.8 M10 Bolts holding the bumper on.

A brief google suggests that they will take 3T plus in shear. I'm not a mechanical engineer, but I'd assume you have 4 bolts, so 8 bearing faces (top and bottom) allowing for 24T of Strength in the bolts. I suspect it would start pulling out of the bumper and chassis legs first!

17th Jan 2017 10:58pm

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

^^ they wont be under equal stress so 24t can only be thought of as an ideal. How much stress a single bolt goes under during a worst case scenario is the number you need to compare with the 3t number you looked up. That's a harder number to come by

Solved the bowel problem, working on the consonants...

18th Jan 2017 3:04am

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