All ActivityMost RecentMost LikesSolutionsRe: New 5th wheel and towing issuesI got rig weighed at CAT scales. Go online and google CAT scales to find closest place. Also online go to "Trailer Life" towing guide where they have step by step guide and you can fill in the weights and get a report of your rig's max and min condition. You'll have to weigh the combine rig and then just the truck separated from 5er. I did it on two separate trips to scales. Cost is about $10 each weigh in. Tell operator it is first time weigh in. Note, the button to talk to operator is way up high for semi drivers. You'll need a step ladder or a stick to reach the button. Position your front truck axle on the front scale, your truck rear axle at the second scale and the 5er on the last scale. Once operator tells you they have the weight pull off scale and go inside to pay and get weight report.Re: towing rideI am driving a 2005 Chevy Crew Cab, 2500HD 4wd Duramax. I haven't seen any sign of leaking shocks but had to have complete brake line and calipers replaced and complete fuel lines replaced and it wouldn't surprise me if the shocks need replacing too. I know about smart valve shocks so that might be what I will try next. Hope I get to a point where porpoising doesn't happen too often. I know enough to slow down when it happens but nearly stopping on 4 lane interstate not what I want!!Re: towing rideSo name a "higher rate shock" or give me some more clues about such a shock. My mechanic suggested air bag suspension system. Any thoughts about that?Re: towing rideBigger tires on 5er? Axle spacing may not allow bigger tires. Now have ST235/80/16R. Could do the water tank thing to increase pin wt. Will check truck and 5er tire pressures for sure. Might be getting new TV shocks. That can't hurt anything but the wallet.Re: towing ride5th wheel porpoising. Kingpin load wt 1920 which is 18% 5vr wt 10700 TV rear axle wt is 5140Re: towing rideSaw a lot of good info to my concerns. Thanks. However, I just recently got into a new 5 wheel. Although the "porpoising" occurred with my previous travel trailer at times, it seems as though this 5 wheel is more prone to the condition. I will check my suspension components. I have a dealer installed Pull Rite auto slide hitch on 05 Chevy 2500 HD Duramax crew cab. Went on CAT scales and all weights are within range. But now pulling about 3000 more pounds then before. Many bad roads out there for sure. I-71 NB in downtown Cincinnati all ate up! Still seeking replies to 5 wheel "porpoising" condition.towing rideWhat causes a "bucking bronco" ride which is very hard to stop? Is it a throttle issue or a suspension issue or something else? This condition seems to start with bumpy roads and often at slower speeds.