Go Back   Keystone RV Forums > Keystone Tech Forums > Tires, Tires, Tires!
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 03-15-2013, 10:09 AM   #1
Tom462X0
Junior Member
 
Join Date: Oct 2011
Location: Oregon
Posts: 2
Question ST or LT tires on 2005 Montana 2980RL

Hello, I am going to need to put tires on the 2005 Montana 2980RL 5th wheel. We purchased it as a used 5th wheel in 2010. So the tires have been on there since we purchased it. It has on it right now LT 235/85R16E including the spare (looks to be original-sticker still on tread). One of the tires had to replaced due to a leaking problem (bubble in tread area). I wrote to Keystone for advice, they just mentioned the tire size but not whether to install ST or LT tires. Which type do you recommend. We had a little tow trailer and it had ST tires on it. I would think that ST would be a better choice because of the "stiffer" sidewall. I want to call ahead to the tire store to insure they will have the type of tires before we have them replaced.
__________________

Tom462X0 is offline   Reply With Quote
Old 03-15-2013, 05:32 PM   #2
chuck&gail
Senior Member
 
Join Date: Mar 2011
Location: Colorado Mountains
Posts: 422
If it was my TT, and it came with LT's, I'd replace them with LT's.

Again if it was mine they would be non-Chinese tires, with a DOT code no older than 6 months, and balanced with metal valve stems.
__________________

__________________
Chuck
Wonderful Wife
Australian Shepherd
2010 Ford Expedition TV
2010 Outback 230RS Toybox, 5390# UVW, 6800# Loaded
Not yet camped in Hawaii, 2 Canada Provinces, & 2 Territories
I can't be lost because I don't care where this lovely road is going
chuck&gail is offline   Reply With Quote
Old 03-15-2013, 05:50 PM   #3
Tom462X0
Junior Member
 
Join Date: Oct 2011
Location: Oregon
Posts: 2
ST or LT tires on 2005 Montana 2980RL

It came with the LT's when bought it used, so I have no idea if it came with the ST's or LT's originally. Like I mentioned, Keystone was vague on its recommendation. It looks like I will need to talk to a tire place or RV repair facility like Camping World to get the proper information. Thanks for your input much appreciated.
Tom462X0 is offline   Reply With Quote
Old 03-15-2013, 06:20 PM   #4
f6bits
Senior Member
 
Join Date: Nov 2011
Location: SoCal
Posts: 1,739
I wish I had pictures of mine to double-check, but the sticker at the front corner of my trailer has my tire info. I thought it even listed the standard tires and their recommended pressures.
__________________
-Scott, DW, DG, DB, and DD

2011 Passport 2590BH
2009 Ford F150 SuperCrew FX4 5.4L w/Max Tow
f6bits is offline   Reply With Quote
Old 03-15-2013, 08:21 PM   #5
CWtheMan
Senior Member
 
CWtheMan's Avatar
 
Join Date: Feb 2010
Location: Taylors, SC
Posts: 906
Look on the left forward exterior portion of the trailer for the certification label. It may also be found on the LH side of the hitch pin housing.

Keystone quit using LRE Light Truck tires on 6000# axles in model year 2006. So Iím pretty sure yours came equipped with LT235/85R16E tires. I also think most posters will advise you to stick with the LT tires.

CW
__________________
USN RET PDRL
DOD RET
SSA RET
CWtheMan is offline   Reply With Quote
Old 04-14-2013, 11:42 AM   #6
FLCapt
Junior Member
 
Join Date: Mar 2013
Location: Vero Beach, Florida
Posts: 8
LT tires on my '09

Just replaced the tires on my '09 347 THT, with BF Goodrich Commercial LT 235/85 R 16, E rated. The original Goodyear Marathons ST 235/80 R 16 were still on it- they looked good, but had manufacture dates in mid 2007. Didn't want to take a chance, leaving on a 1000 mile trip this week. I don't expect any problems out of the BF Goodrich's. I keep them inflated properly and keep my highway speeds under 65 mph.
__________________
2009 Keystone Montana Mountaineer 347 THT Toy Hauler. Tow Vehicle: 2012 Dodge Ram 3500 CCLB 4x4, SRW.
FLCapt is offline   Reply With Quote
Old 04-14-2013, 01:26 PM   #7
IdahoSRT10
Member
 
IdahoSRT10's Avatar
 
Join Date: Feb 2013
Location: Idaho
Posts: 59
The LT's like to spin faster and not fly apart at high speeds, but they don't drag sideways while turning as good as the ST's. Keep an eye on your suspension with the LT's.
__________________
09 Heartland Sundance XLT 5'er
08 F-250 CrewCab, 4x4, 6.8L V-10, 5Star tuned.
10' Ram 1500 4x4 Crew Cab, Hemi
08 Viper SRT-10 Coupe
10' Cyclone enclosed car hauler
IdahoSRT10 is offline   Reply With Quote
Old 04-14-2013, 01:36 PM   #8
cathcartww
Senior Member
 
Join Date: May 2012
Location: Stone Harbor, New Jersey
Posts: 161
Here is a pretty good discussion of ST vs LT ....

http://rvingwithmarkpolk.com/2012/11...s-vs-lt-tires/
__________________
Bill & Kate with Zeke (the parti-poodle)
Stone Harbor, New Jersey

2012 Keystone Outback 277RL ("Salty Doghouse II")
2005 Ford/Quigley E350 Super Duty 4x4 Van with Powerstroke 6.0L Diesel ("Moby")
cathcartww is offline   Reply With Quote
Old 04-14-2013, 01:37 PM   #9
therink
Senior Member
 
Join Date: May 2010
Location: Rochester, NY
Posts: 1,605
Quote:
Originally Posted by IdahoSRT10 View Post
The LT's like to spin faster and not fly apart at high speeds, but they don't drag sideways while turning as good as the ST's. Keep an eye on your suspension with the LT's.
I just installed my first set of LTs on the new fiver. I have read that on sharp maneuvering turns, there is the potential to break the tire bead or stress the axles. Should I be concerned? Is tight turning on dry pavement the stressor? I just wanted tires I didn't have to worry about. Did I do the right thing? They are Firestone Transforce HT's.
Steve
__________________
Steve Rinker
Rochester, NY
2013 Outback Sydney 340FBH (12,280 lbs loaded-scale)

2015 GMC Sierra Denali 3500HD, SRW, Duramax, CC, SB (payload 3700)

http://i1109.photobucket.com/albums/...65/340FBH1.jpg
therink is offline   Reply With Quote
Old 04-14-2013, 04:25 PM   #10
BeerCan
Member
 
Join Date: Feb 2013
Location: FL
Posts: 65
As long as the tires meet the load rating for the axle, I would not stress about it. In general I think tires with a closed shoulder design such as ribs are better on trailers, but it is not mandatory.

Keep the pressure correct and watch for unusual wear and you should be fine.
__________________

BeerCan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3

All times are GMT -8. The time now is 10:44 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This forum is owned and operated by Social Knowledge, LLC. It is not authorized or endorsed by the Keystone RV Company and is not affiliated with the Keystone RV Company or its related companies in any way. Keystone RV® is a registered trademark of the Keystone RV Company.