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Old 10-12-2013, 12:28 PM
TN Skier TN Skier is offline
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Boat: 1992 Mastercraft Prostar 190
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Prop Guard vs. Driveway (Prostar 190)

Greetings to all -

It seems that no matter how much drop I put at the trailer hitch, I just cant get the boat in/out of the drive without dinging the drivewy with the prop guard on the trailer ('92 Prostar 190 pulled with '04 Nissan Tiatn 4x4).

I have gone so far as to try using a 10" drop with layered (6" worth) wooden 2x12 ramps (5' in length) to try to bridge the gap. Once the boat is in/out of the leading edge of the drive, then I switch it back to a "normal" drop hitch; this sorta takes some fun out of the day.

My question is this... what are your thoughts on using lift blocks at the axle maybe somewhere between 2-4 inches to raise the trailer frame up and get the prop guard up higher off the deck?

It seems like an easy fix to me; however I don't want to alter the towability. In my simple mind I don't see that it would; generally the most simplest of my solutions turn into my most difficult of problems.

Thanks in advance for the ideas and advice...

Last edited by TN Skier; 10-12-2013 at 12:51 PM.
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Old 10-12-2013, 12:50 PM
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madcityskier madcityskier is offline
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It's been done and there are pictures in a few previous threads. The most common answer is drag wheels, or micro rollers (the name depends on who you ask). I'm contemplating adding them to my 85 trailer too.
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Old 10-12-2013, 12:59 PM
TN Skier TN Skier is offline
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Is there a recommended size of drag wheels?

I forgot to mention that with the 10" drop at the hitch; the spare tire bottoms out on the drive...

...it has turned into quite the engineering project...

There are many contributing variables to the problem...the initial approach angle of the driveway entrance...the grade and crown of the roadway...the height of the spare clearance...the height of the prop guard...

I feel like there may be a multi-approach to the solution in the near future...just looking for the correct one...

There will hopefully be a "new to me" trailer in the future and the the solution will have to be replicated...
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Old 10-12-2013, 01:31 PM
Cloaked Cloaked is offline
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Originally Posted by TN Skier View Post
Is there a recommended size of drag wheels?

I forgot to mention that with the 10" drop at the hitch; the spare tire bottoms out on the drive...

...it has turned into quite the engineering project...

There are many contributing variables to the problem...the initial approach angle of the driveway entrance...the grade and crown of the roadway...the height of the spare clearance...the height of the prop guard...

I feel like there may be a multi-approach to the solution in the near future...just looking for the correct one...

There will hopefully be a "new to me" trailer in the future and the the solution will have to be replicated...
http://www.mastercraft.com/teamtalk/...1&postcount=15

I'll say this.... regardless of what drags, be it a roller or a bar, there is still the same amount of force transferred to the component that is dragging the ground, which also changes the dynamics of the hitch point/trailer. The rollers become subject to exerted force or the existing bar (without rollers) experiences the same force. I think rollers are justified in not deteriorating the bar by dragging it across a surface. Your access point approach to your driveway will still be the same. I'd raise the trailer frame up from the axle as you inquired, or add a leaf-spring lift kit. I would not academically recommend modifying any trailer without proper design configuration analysis.

As a general observation and opinion, I think these low-profile (low center of gravity) trailers are much less practical than other trailers I have seen under a Nautique.

For your immediate need, I'd add a spacer (do it properly) or a leaf and allow for more space there and possibly additional height from a larger wheel diameter (the theory of a lift kit on a jeep for off-road ground clearance).

Also look here ==> https://caltrailerworks.com/online/p...cat=161&page=1 for an idea of what is available....
.

Last edited by Cloaked; 10-12-2013 at 01:42 PM.
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  #5  
Old 10-12-2013, 01:36 PM
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tph tph is offline
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adjustable ball height

Not sure if this would help, but you can easily change the height on the fly with a cordless drill with a 3/8" drive adapter. I use this all the time to help at the launch ramp.
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Last edited by tph; 10-12-2013 at 09:42 PM.
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Old 10-19-2013, 11:02 AM
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mzito mzito is offline
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Quote:
Originally Posted by tph View Post
Not sure if this would help, but you can easily change the height on the fly with a cordless drill with a 3/8" drive adapter. I use this all the time to help at the launch ramp.
Who makes this hitch. looks like something I need.

Thx
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Old 10-19-2013, 01:39 PM
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starman205 starman205 is offline
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tph, where do you purchase one of these hitches?

Quote:
Originally Posted by tph View Post
Not sure if this would help, but you can easily change the height on the fly with a cordless drill with a 3/8" drive adapter. I use this all the time to help at the launch ramp.
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Old 10-19-2013, 04:15 PM
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JMLVMI JMLVMI is offline
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Originally Posted by starman205 View Post
tph, where do you purchase one of these hitches?
Quote:
Originally Posted by mzito View Post
Who makes this hitch. looks like something I need.

Thx
Google Image Search turned this up: http://www.amazon.com/Master-Lock-28.../dp/B0006V8O10
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  #9  
Old 10-12-2013, 04:37 PM
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OHIOPRO205 OHIOPRO205 is offline
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I was having trouble with mine dragging so I put a 2" lift on my trailer. I used 2" square tubing and bought longer U bolts. I still have to put 2x10 ramps down but that is it. Makes things a lot easier, and now I only need a 4" drop on my truck.
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Old 10-18-2013, 04:47 PM
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Kyle Kyle is offline
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A little late to post but wanted to give what I did.


I took the boat and trailer to a spring shop here locally. I had custom leaf springs made. They removed my old springs and could tell load and height from them. They added a few leafs and made it stronger than a factory spring. Total lift was like 2-3"

It ran me $200 and they removed old, made the new springs, and installed for that price.
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