Bumper towing

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Lord Les
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Posts: 100
Joined: Mon Aug 15, 2011 8:09 pm

Bumper towing

Postby Lord Les » Sun Nov 29, 2020 6:55 pm

I tried to get a tow dolly tonight but after putting the dolly on the whole bumper moved up and down. Like five inches. From the guy the bolts need to be tightened. First question, do those bolts rust? Second what is the size of the bolt incase I need to replace? I'll pull all FOUR bolts to make sure. Finally how strict is that 2000 lb limit if that is correct? I have to tow a car with the dolly will be right around 2000 lbs. 1700 for the vehicle (Geo Metro). No mountain passes.
1983 diesel Pup w/ long bed and manual transmission (no AC) and ugly ugly paint

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Halden
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Posts: 2916
Joined: Thu Mar 29, 2012 5:20 pm
Location: Everertt, WA
Isuzu vehicle(s): 83 Dsl LS Long Bed 4x4, 82 Dsl 2wd Short Bed 5 spd

Re: Bumper towing

Postby Halden » Sun Nov 29, 2020 8:09 pm

Guys pull pups with their pups among other things they probably shouldn't. Best bet to get replacement bolts would be to just pull them and get some grade 10.9. My guess is they are M12. Equivalent would be 1/2" grade 8. I'd torque them so they are close to their yield point. Fine thread has a higher torque value, giving you a higher clamp force. Usually bolts are fine thread on these things. Clean the clamping surfaces and everything.
I am not willing to assume any liability for any damage or harm that occurs. This is all at your own risk.

A piece of advice. Avoid pulling in 5th gear.
It's not pronounced "Ih-soo-zoo", it's pronounced "It-screws-you"
83 LS Long Box Dsl 4x4
82 Short Box Dsl 5 spd
64 Chevy C20 w/ 283 & 4 speed.
05 Sonata with a standard

Lord Les
Regular Member
Posts: 100
Joined: Mon Aug 15, 2011 8:09 pm

Re: Bumper towing

Postby Lord Les » Sun Nov 29, 2020 8:47 pm

Thanks. Yeah, I've been reading about towing in 5th gear. We have a place called Tacoma Screw around here. Bolt City.
You are waived from any liability.
1983 diesel Pup w/ long bed and manual transmission (no AC) and ugly ugly paint

User avatar
Halden
Regular Member
Posts: 2916
Joined: Thu Mar 29, 2012 5:20 pm
Location: Everertt, WA
Isuzu vehicle(s): 83 Dsl LS Long Bed 4x4, 82 Dsl 2wd Short Bed 5 spd

Re: Bumper towing

Postby Halden » Sun Nov 29, 2020 9:35 pm

Lord Les wrote:Thanks. Yeah, I've been reading about towing in 5th gear. We have a place called Tacoma Screw around here. Bolt City.
You are waived from any liability.


Ahh you're from WA! I get stuff from their branches all the time.
It's not pronounced "Ih-soo-zoo", it's pronounced "It-screws-you"
83 LS Long Box Dsl 4x4
82 Short Box Dsl 5 spd
64 Chevy C20 w/ 283 & 4 speed.
05 Sonata with a standard