By Rob Davison (Pokerob) on Friday, September 21, 2001 - 04:53 am: Edit

ok,


what is the correct rear pinion angle i should try for when installing these?

for those out there with 2.5" lift and have installed these arms, what size and how many spacers did you use from john?

i'd ask john but he's on vacation.

thanks
rob

p.s. i checked the archives already

By Diesel on Friday, September 21, 2001 - 04:59 am: Edit

The correct pinion angle is about 3 degrees. For the 2.5" lift, I don't know how many spacers you should use. John will be back Monday I think so if you still don't have an answer you can ask the man himself.

Diesel

By Kyle on Friday, September 21, 2001 - 05:34 am: Edit

I dont there think really is a migic Number Rob but the starting point is right around 3-4 deg. Start there and adjust it as needed.

kyle

By Danno on Friday, September 21, 2001 - 05:42 am: Edit

i think that Tom P. was running with both large spacers in. with that he got vibes. i think that he removed all the spacers and now no vibes.

Danno

By Rob Davison (Pokerob) on Friday, September 21, 2001 - 05:43 am: Edit

well, how bad is it to drive around for a day with vib's?

immediatly following the installation i have to tow a 21ft boat ~ 20 miles. thats why i'm being so anal about getting the angle just right the first time

rd

By Ron on Friday, September 21, 2001 - 05:50 am: Edit

Pokerob,

Try one big one and one little one or just one big one.

Ron

3in you are supposed to do both big ones but not the little one.

By Moe (Moe) on Friday, September 21, 2001 - 05:51 am: Edit

The links should come with 3 spacers--1/2, 3/8, and 1/4". John says to use the 1/2" and 3/8" spacers for a 2" lift and he also says they will 'generally' work for a 3" lift too. I would start with the two thickest spacers.

By Bill Bettridge (Billb) on Friday, September 21, 2001 - 06:12 am: Edit

Rob - per John he told me to use the two larger spacer also - 1/2" and 3/8". Mine came out right on as far as angle and vibes go. Though. my lift isn't quite 2 1/2" - about 2 - 2 1/4" depending on where you measure.

By Matt Milbrandt (95discovery) on Friday, September 21, 2001 - 06:25 am: Edit

With my 3" springs, which put me a little taller than 3", I had to play around with the spacers to get it just right. I started with the 2 largest, tried just the 1/2", and finally settled on the 1/2" and the 1/4" with no vibes.

Matt

By Ron on Friday, September 21, 2001 - 06:36 am: Edit

You also have to consider the condition of your bushings and how much you torque that big nut.

In anycase as long as you are close it will be no biggy for the boat tow, you would have to be horribly wrong to wreck a Drive shaft that quick.

Ron

By Bill Bettridge (Billb) on Friday, September 21, 2001 - 06:53 am: Edit

the 30mm nut on the trailing arms should be torqued to approx 125 ft/lbs

By Ali on Friday, September 21, 2001 - 07:15 am: Edit

Depending on your tongue weight, you can actually improve your pinion angle! Like everyone says, 2.5 to 3 deg is optimum.

By Ron on Friday, September 21, 2001 - 07:28 am: Edit

I know Bill,

But you can "cheat" bad bushings by overtorqueing a bit and with poly well everything goes out the window.

Ron

By Al on Friday, September 21, 2001 - 07:30 am: Edit

Thanks Billb. I had to learn that lesson the hard way. I know of another who had the 30mm nut back out during an event. Luckly he found spacer and net on the trail. I now have locktight on the nut. I still have vibes just waiting tell i get new lock washers to try again with locktight.
Thanks again!

By Ron on Friday, September 21, 2001 - 07:33 am: Edit

Humm,

Maybe I should wire that nut on

Ron

By RVR OVR (Tom) on Friday, September 21, 2001 - 07:47 am: Edit

Pinion Angle = Fun (if you are insane).

Rob - do you have a rear CV? If not, then angle on the output of the transfer case should be equal to the angle of the rear pinion. If you have a rear CV shaft, then you want the rear pinion angle to be pointed up to make it so the rear u-joint has no angle in it at all.

For my 3" springs, the Big washer and small washer did the job with a stock rear shaft. With my CV shaft, I don't use any of the RT washers.

Tom

By Bill Bettridge (Billb) on Friday, September 21, 2001 - 07:53 am: Edit

Not trying to "school" ya Ron - just remembered the torque from doing mine recently.....

Can't imagine losing that nut unless you reused the factory nylock nut instead of springing for a new one (RTE supplies with the arms) - But, it's a Rover, so anything is possible

By Rob Davison (Pokerob) on Friday, September 21, 2001 - 08:13 am: Edit

tommy,

i have dont have an aftermarket rear drive shaft.
but it does have U-joints (1997 disco).

i will measure the output shaft angle and try to match it. double check it by making sure i am in the 3-4 deg ballpark when i'm all torqued down.


thanks to the rest of you ladies that were bored enough on a friday afternoon to answer back.

rd

By AL on Friday, September 21, 2001 - 08:15 am: Edit

Yes it's possible, mine were back out and I had the new RTE nut and also installed the old nut over because I had no locktight. What was explained to me was the axle twisting side to side can make them work out. Humm! Knowing this, I put two nuts on but still had them back out.
I torque the RTE nut to 90LBS. I'll check on mine periodically from now on.

By Ron on Friday, September 21, 2001 - 08:16 am: Edit

Thats ok Bill always happy to be schooled and learn. Just played with them on the RR to try to eliminate some of the clunk I put a breaker bar on it and kicked the bar as hard as I could to tighten it so I think I am ok.

Ron

By Ho Chung (Ho) on Friday, September 21, 2001 - 08:27 am: Edit

new or used, even with loctite, that bolt can come off. so just keep your eyes on them.

By RVR OVR (Tom) on Friday, September 21, 2001 - 08:37 am: Edit

Tommy? Ladies? That's a fine way to treat your helpers.

By Bill Bettridge (Billb) on Friday, September 21, 2001 - 08:40 am: Edit

Interesting about the nuts - I didn't see any locktite residue when I removed the stock ones and they seemed fine (after plenty of off road use) - wonder what the difference may be??

By RVR OVR (Tom) on Friday, September 21, 2001 - 08:45 am: Edit

Nah, they don't locktite them because of the nylon lock nuts.

Tom

By Rob Davison (Pokerob) on Friday, September 21, 2001 - 09:02 am: Edit

>Tommy? Ladies? That's a fine way to treat your helpers.

hehe, aw... my little helpers.

;)

rd

By Discosaurus (Discosaurus) on Friday, September 21, 2001 - 09:38 am: Edit

I had one of those nuts back off after a long run down a long whoop-dee-doo CO forest road at speed. Was probably working the trailing arms from bump stop to max spring extension, over and over.

Pulled out onto the tarmac, gassed it and the whole damn truck felt like it started down the road at a 45 degree angle .

One side was backed off to within a few threads of coming off - good thing it didn't happen at speed on the dirt...

Those nuts immediatly went onto my list of shit to check after every offroad run !

keith
discosaurus

By Ron on Friday, September 21, 2001 - 09:42 am: Edit

SOOOOOOOOOOOOOO,

what is the best way for me to secure them. Drill throught the end and put a pin in front of the nut on or drill and wire them up?

Ron

By Rob Davison (Pokerob) on Friday, September 21, 2001 - 10:04 am: Edit

Hold the phone here...

maybe they backed out because the nyloc threads were worn out from trying several combinations of RTE's spacers? if it takes 3 tries to get it right will the nyloc's be still have thier optimum antibacking-outness properties?

the fact that it backed out with a 2nd bolt is disturbing, because this is the kind of shit that happens to me. the bizar scratch your head kind of breakdowns.. i blame them all on the Ranchoes. they dont dampen proberly and let shit rattle loose.

rd

By AL on Friday, September 21, 2001 - 10:31 am: Edit

Let me explain, I was told by a LR mechanic that his rear link fall off during a run at big bear.
He use the compressor and sad he never had any come off before. I installed mine that night and realize that i was out of locktight. So I used 1/2 inch spacer as per instructions and installed the RTE nut. Torque them to 90 lbs and thinking about my friend i install the original nut also.
When I checked after this weekend of fun they back out 1/8". Hope this helps!

By Rob Davison (Pokerob) on Friday, September 21, 2001 - 11:08 am: Edit

thanks for the clarification...

it's 5pm on a friday

time to get drunk!

rob