Jump to content

Recommended Posts

Thanks,

I now have the full floating axle (gear ratio unknown) in the back of my truck, along with what appears to be 14" true dual wheels. I could have the local welder move the mounting bracket from bottom to top before I take it down to Mammoth and hopefully bolt it in. They cut the ebrake lines at the wreckers.... will the ones on the my 4*4 work or do I need to buy new cables? The main short term issue seems to be changing the brackets to the top....and the long term issue is the gear ratio. We could do without 4*4 this year and fix that this winter. I do need to get it home so I can deal with this on my home turf. Is it OK to move those brackets and are there any special problems doing that? Thanks guy's!

Daan

If you can get the yard to tell you the VIN of the donor truck you can call Toyota and they can look up the rear end ratio for that vehicle from the VIN. I had my local dealer look up the gearing on my 91 Sunrader auto trans (4.10:1) from the VIN

The brake cable might have to be customized as I had a bear getting the one on the diesel to work (the 1 ton was too short and the old one would not match with the later model brake lever).

As far as the spring mounts, any good fabricator should be able to remove them and put them back on seeing as you have both the original axle and the donor axle present. They do not have to be exact, close is fine as the U-joint has a lot of leeway with the angle.

Share this post


Link to post
Share on other sites

Thanks Mike...

Just back from the welder, I now have the saddles with the right angles on the top. The donor Dolphin had a repaced axle so VIN may not be helpful? Next step is to go to Mammoth and get this axle in so we can get it home safely. Can I buy new ebrake cables at Toyota that would work?

Thanks Daan

Share this post


Link to post
Share on other sites

Just get some U-bolts and clamp the ebrake cable ends togather to get you home.

Share this post


Link to post
Share on other sites

Oh Boy.... I have my Sunrader home! Found the axle in a wrecked Dolphin, changed the brackets and had it installed and drove it home... It has 14" Dualies, they didn't hook up the e-brake and they didn't re-install the sway bar because of rusty bolts. I now have some fiberglass repair, uncertainty about matching the gearing to the front axle and uncertainty about wether I should use 14" wheels on this rig (easier) or figure out how to get 15" rear dualies (?) on the new floating axle. Can anybody tell me if 14" wheels would work just as well as the 15"? , and can anybody recomend a shop that could deal with my 4*4 gear problems. I'm in the Reno/Tahoe area. Thanks deggenb

Share this post


Link to post
Share on other sites
can anybody recomend a shop that could deal with my 4*4 gear problems. I'm in the Reno/Tahoe area. Thanks deggenb[/qrecommenduote]

These folks are a little ways from you but are very knowledgeable and should at least be able to point you in the right direction if not fix you up altogether. Worth a call to them to pick their brains (I'm sure they have done similar 4x4 re-axleing several times in the past)

http://www.lcengineering.com/

Share this post


Link to post
Share on other sites
uncertainty about matching the gearing to the front axle and uncertainty about wether I should use 14" wheels on this rig (easier) or figure out how to get 15" rear dualies (?) on the new floating axle. Can anybody tell me if 14" wheels would work just as well as the 15"? , and can anybody recomend a shop that could deal with my 4*4 gear problems. I'm in the Reno/Tahoe area. Thanks deggenb

I posted a link to Stockton Wheels and a link to Marlin Crawler in posts above. Again, Stockton Wheel can build you the 15 inch duallys and Marlin Crawler can answer any question about your gearing. Both are basicly local for you (Stockton and Fresno). My personal opinion is that you want the same gear ratio front and back and the same size tires front and back perferrably also the same size rims. If you can get some tires on the 14 inch rims that are the same circumference as the front tires that would work.

Share this post


Link to post
Share on other sites

Thanks,

New 15 dualies are over $700 from stockton wheel...... I have all 7 rims and tires for the floating axle but they are 14" not the 15" on the old axle. Would running this rig with 14" wheels be OK? I still have the gear ratio to deal with but can manage that later.

deggenb

Share this post


Link to post
Share on other sites

Just driving around is OK but don't use 4x4. There is a very good chance that the new rear axle has the same ratio as the front. If you stick with the 14 inch rear duals go to a tire shop and ask for some big tires that would be the same circumference as your 15 inch fronts. I know a couple of guys have done that. But it has to be the same not close. Question is how much will 4 new rear tires cost? You already have 4 15 inch rears right so really the difference is the rims. If new tires are $400 and the 15" rims are $700 your really only spending 300 for always having the right size rims. That might be strange logic but the reality is all the tires front to back have to have the same circumference or things will blow up. Gear ratio is another that has to be the same front and back.

Share this post


Link to post
Share on other sites

WARNING. Befor you get to big on the 14" dullies remember that 195 is about as big as you can go with out the tries rubbing. Maybe a smaller 15" front tire

Share this post


Link to post
Share on other sites

I know this is an old thread, but I feel bad and wanted to offer some info to you folks: the Dolphin in my backyard has a Toyota FF dually rear axle. The good news is that this axle uses the ultra-common 8" third member. Therefore, you can re-use your gears from any other Toyota 8" rear end; you just switch the entire third member assembly- you don't mess with the gears themselves. I suspect yours are the same as mine.

Share this post


Link to post
Share on other sites

hahaha left hand threads gee wish we read this post a couple weeks back when we had a fun time struggling to get them off torching away at them thinking they were stuck its funny now...yet wasn't then..

so by the way we have an early model 1986 dolphin 300 model and its got the left hand threaded drivers side 6 lugs you are saying that came from a 1986 toyota 1 ton truck not the original motorhome's replaced 6 lug? because of the left hand threads? they didn't do that for anything but? that's cool/interesting you learn something every day! I heard toyota made diesel pickups in canada for a bit wouldn't that be a fun conversion if our young 22re ever shits the bed i'm going to seek one of those babies out

ps cool drawing of a guy and his toyota motorhome(not mine) thought folks here might enjoy(didnt work... try again later)

Share this post


Link to post
Share on other sites

hahaha left hand threads gee wish we read this post a couple weeks back when we had a fun time struggling to get them off torching away at them thinking they were stuck its funny now...yet wasn't then..

so by the way we have an early model 1986 dolphin 300 model and its got the left hand threaded drivers side 6 lugs you are saying that came from a 1986 toyota 1 ton truck not the original motorhome's replaced 6 lug? because of the left hand threads? they didn't do that for anything but? that's cool/interesting you learn something every day! I heard toyota made diesel pickups in canada for a bit wouldn't that be a fun conversion if our young 22re ever shits the bed i'm going to seek one of those babies out

ps cool drawing of a guy and his toyota motorhome(not mine) thought folks here might enjoy(didnt work... try again later)

Guess what, our 91 2 wheel drive does not have left hand threads. Our 86 4x4 did though. Perhaps someone replace the studs on ours?

Share this post


Link to post
Share on other sites

The stud size is also different the 6 bolt 14" are 14 MM and the 15" 6 bolt are 12MM.

Share this post


Link to post
Share on other sites

I know this is an old thread, but I feel bad and wanted to offer some info to you folks: the Dolphin in my backyard has a Toyota FF dually rear axle. The good news is that this axle uses the ultra-common 8" third member. Therefore, you can re-use your gears from any other Toyota 8" rear end; you just switch the entire third member assembly- you don't mess with the gears themselves. I suspect yours are the same as mine.

This is not true. 8" third members come in different gear ratios. That way you can regear without swapping axles. A v6 has a different ratio than a four cylinder, but the third member is the same size. For 4x4 people, regearing is a really common thing. 4.10 was stock for most four cylinder trucks, but when people go with bigger tires, they swap 4.56 or lower gears, and all those fit into the same 8" differential housing/axle.

Anyways, the above post is partially true, but you cannot expect that by grabbing any 8" third member, the gearing will match your front differential, if you have a 4x4. It won't exactly mess things up if you have a 2wd, but if you just grab any differential, you may end up with a different gear ratio. The only time things will break is with a mismatched front and rear ratio, once you try 4wd.

Edited by MontanaChinook

Share this post


Link to post
Share on other sites

OK you rear axle gurus out there. I have gotten an email from a fellow Sunrader 4x4 owner who is broken down near Yosemite with a 6 lug axle where all 6 lugs have sheared off and he needs to know how to replace them.

My 85 Toyota 2wd motorhome has SPLINED lug bolts that press in from the back side of the drums and the rotors(front) . To remove them take a drift and a small 2-5lbs hammer and punch the old lug bolts out,do NOT hit the threaded if they have any unless you put a nut on the lug bolt FLUSH with the tip of the lug bolt threads if it will allow it! To replace them,put anti-seize on the splines of the new lug bolt then put them into the back of the hubs, making sure to twist the lug bolt a little back and forth till you feel the splines on the lug bolt lock into the old grooves created by the old lug bolts.MAKE SURE THEY ARE STRAIGHT IN THE HOLE then put a nut on the stud and tighten the lug bolt till it is flush against the back of the hub. Do this slowly,do not use air tools... this is why they brake, to much torque!! Good Luck Rod.

Share this post


Link to post
Share on other sites

  • Toyota Advanced Member
  • member4.gif
  • 114 posts

Posted 23 August 2007 - 01:41 PM

I second what Nolan says.

Remove the half shaft (getting the cone washers free is a b$#@^%)

Remove the ring nut that preloads the bearing

Slip off the brake drum / hub

does anyone have a manual or link to where this is shown...or could jot down a couple of things for me :-)

I have a full floating axle on an 82 Toy -- no idea what model yet of RV, and Diff.... yet though i will...

i need to pull off the drums check the back brakes -- and i have never seen full floating axles before with a dulley set-up

so from what i quoted... and what i am interested in---- is what to do to remove the ring nut and the settings to record? and re installation directions..eg. - torque#'s.

Is there anything special i need to know to remove ring nut to get the brake drums off... and on reassembly...

thanks in advance ---

Share this post


Link to post
Share on other sites

OHHHHH Silly ME... i just found it in the Toy site.... :-) repasting here... hope thats ok

wow all of this to take off the drums...

any suggestions on not having to use the SST tool??? or is it nessisasary to use.... i guess its really the best way... a quik thought ??? suggestion :-)


http://toyotamotorhome.org/forums/index.php?showtopic=6104&page=1

V




Dully_Rear_End_Overhaul.pdf

Edited by vert

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×