MonteCarloSS.com
MonteCarloSS.com

CELEBRATING 20 YEARS!

Previous Thread
Next Thread
Print Thread
Page 26 of 28 1 2 24 25 26 27 28
#1042911 - 08/29/16 07:00 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jan 2000
Posts: 4,863
mmc427ss Online content
20+ Year
mmc427ss  Online Content
20+ Year
Member

Joined: Jan 2000
Posts: 4,863
Pottstown, Pa
I went with a solid spacer for pinion preload this time.
https://www.summitracing.com/parts/RAT-4109/
The spacer had to be chamfered on it's ID so it sat down on the yukon gear pinion's radiused shoulder. Also had to sand .001" at a time off the spacer thickness to get final preload, the shims supplied only got you in the ballpark, either to much or to little. Once you have the correct spacer thickness to achieve proper preload it's just a matter of some locktite and a torque wrench to be done.

Make sure you check the diff for runout on the ring gear mounting surface. Have read some of the Eaton stuff has been out of spec.

Clever little spreader you made there. Don't forget the max to spread is .010". No real way of knowing how much carrier bearing preload to use, it's a feel thing. You should be able to install the shims with lightly tapping them in with a hammer. Once the carrier is in removal should require more than just pulling it out by hand, a pry bar with a little bit of force should be required.

The carrier shim packs, I liked the one Tom's Diff sells, didn't care for the Richmonds, reused the Tom's, easier to get them into there home without damaging the shim packs.

My new rear rebuild, quiet as a mouse, could be the Yukons. Took a little while to get good patterns in drive and coast but patterns were consistent all the way around the ring gear.

From what I've read with used gears you concentrate on the coast side, drive side is what it is as long as it's not overly heel biased.
Bob

#1042944 - 08/30/16 04:30 PM Re: The SickSpeedMonte [Re: MC96]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Originally Posted By: MC96
Thats always been my experience with pinion preload. nothing. nothing. nothing. boom 2x what you need, happens every time lol.

Ive only ever done an integral carrier on a bench, even then its kind of a pain, but helpful not to feel rushed or work over your head.



haha yeah and I even said, "I'm sure we can go just a bit further" right before I went too far.


Good info Bob, thanks. I'll put the carrier back in and measure runout before putting the new ring on. My friend told me that you can install the carrier without shims and use the dial indicator and a pry bar, pushing it all the way to one side, zero it out, and then the other way. That gives you the total gap, add the preload, and that's how many total shims you need. Kind of pointless unless you have a target through.

The carrier shims did require some light tapping with a brass drift to seat them. The carrier would have come out with a pry bar but we just spread the housing again. We got a good feel for the way the original carrier spacers were set up (factory single-piece shims) and we tried to replicate that as best we could. I should just measure those parts now that I think about it!

Having the rear out of the car should make it a little easier to try enough combinations to be happy with it. I might just need to find some more patterning compound somewhere. Apparently it's hard to find.

#1042946 - 08/30/16 04:42 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Another interesting method I just read...

Set the pinion bearing pre-load, I guess with the old crush sleeve, as close as you can. Measure it and record the number. Throw in the carrier with shims and torque down the caps. Measure again and subtract the two numbers. Multiply the difference by your gear ratio and that's the carrier bearing pre-load (neglecting friction in the gears, which may be negligible.) They said the spec is 15-35 in-lb. This is from a GM training school... but he did say that pinion preload should be 25-35. Everything I see says 14-19.

#1043016 - 09/01/16 11:19 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Well last night I pulled the rear end out to start putting in the new gears. I had a little trouble getting the passenger side axle to slide in to release the C-clip and then a hell of a time getting it to come out. I had to beat it out with a piece of round bar. Here's why:



I can't believe my friend and I missed this last weekend. I showed him this picture and he said he remembers seeing something but thought it was normal. He said he doesn't remember the burrs. I guess it could have gotten a lot worse in the ~30 miles I drove it after putting it back together. It came out very easily the first time too, which has us scratching our heads a bit. The noise didn't get any worse on the drive home, so I'm sure this is the cause of the noise/vibration.

So moving forward, I measured the other axle and inspected both axle bearings. The other axle measures 1.400 the whole way across the bearing location so I'm going to re-use that one. I'll replace both bearings and seals too. So now I need a puller and an installer, unless maybe a socket can install it.

So now the debate is whether to install the new gears and have it 100% fresh or to return them. I'm kind of leaning towards installing them while the rear is out.

#1043078 - 09/02/16 08:52 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jun 2004
Posts: 947
SicMonte Offline
Member
SicMonte  Offline
Member

Joined: Jun 2004
Posts: 947
Woodbine, MD
hi bernie


why list my mods...the car speaks for itself...and scares old ladies and children.

#1043303 - 09/08/16 11:54 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
I got it all back together with the Yukon gears and new axle bearings and a Moser axle. Pattern looked pretty good in the end. It was centered but looked a little like a parallelogram rather than an oval. I don't know what I can do about that though. Backlash ended up right at 0.006 and pinion preload was 19 in-lb.

Took it on the 17 mile break-in cruise and everything felt good. Drove it to work this morning and got up to 65 and she's nice and quiet smile Now I can't wait to get them broken in to play with this Trutrac.

#1043342 - 09/09/16 02:07 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Dec 2007
Posts: 6,235
SSLance Offline
10+ Year
SSLance  Offline
10+ Year
Member

Joined: Dec 2007
Posts: 6,235
Peoria, AZ
Glad to hear the problem seems to be fixed Bernie! It's fun when we cure their ills then get to enjoy the fruits of our labors isn't it?


Lance
1985 Monte Carlo SS Street Car
#1043530 - 09/15/16 01:16 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Definitely is! Now just have to put a bunch of miles on it, change the oil, and then to OC cruise week.

#1043602 - 09/17/16 01:32 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jan 2000
Posts: 4,863
mmc427ss Online content
20+ Year
mmc427ss  Online Content
20+ Year
Member

Joined: Jan 2000
Posts: 4,863
Pottstown, Pa
Have been playing golf for a week in Fredrick, MD, now catching up.

The axle bearing/journal that went south in my 8 1/2" was the left side, a pair of Mosers and fresh bearings fixed that. Even though I cleaned the tube very thoroughly I was surprised with how much junk was still in there when I did the recently R&R.

What did you use for lube? After a lot of reading and looking for a lube I settled on Wolf's Head 80-90 straight gear oil, no additives. I bought 3 qts of Lucas 10043 80-90 but decided not to use it because it had a Limited Slip Additive. Opinion seems to vary on what lube to use, even Eaton has two suggestions, but it appears less is better, straight gear oil, no synthetics or friction modifiers. With almost a 1000 miles and 8 passes at the track I'm happy so far. Will drain the rear and inspect when it gets very cold here.
Bob

#1043674 - 09/19/16 12:23 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Bob,

There was a ton of metal in the axle tube. I pushed a rag through with a broom stick several times until it started coming out clean. I'll check out the magnet when I change out the fluid at 500 miles.

I used Joe Gibbs Driven break-in gear oil.

https://www.summitracing.com/parts/jgr-02330

It is non-synthetic and doesn't say anything about having a friction modifier. I only have about 130 miles on it so far, but it's very quiet. Haven't pushed it hard enough yet to decide if I like the TrueTrac, but it's great for street driving... don't even know it's there.

#1056236 - 03/05/18 08:59 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Time to knock the dust off this thread with a little help from imgur

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

#1056239 - 03/06/18 12:54 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Sep 2007
Posts: 3,186
1 Slow SS Offline
10+ Year
1 Slow SS  Offline
10+ Year
Member

Joined: Sep 2007
Posts: 3,186
Small town KY
That's cool to see you still have the desire to finish it. I always start so many things I'll walk away from the Monte for a couple years. I plan to start mine again in the next year or two.

BTW I'll need another pedal sometime too...LOL


Enjoy life, family first!
#1056240 - 03/06/18 01:03 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Yeah I got side tracked last year building the CNC and restoring my pool. And having another baby lol.

They’re powder coated now! laugh

#1056243 - 03/06/18 01:35 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Feb 2013
Posts: 140
Warriorridge Offline
Member
Warriorridge  Offline
Member

Joined: Feb 2013
Posts: 140
Petersburg PA
popcorn

#1056247 - 03/06/18 01:51 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jan 2000
Posts: 4,863
mmc427ss Online content
20+ Year
mmc427ss  Online Content
20+ Year
Member

Joined: Jan 2000
Posts: 4,863
Pottstown, Pa
Good for you!!! I kinda figured you got side tracked. Which did you have powder coated, the pool or the baby?
Just funnin' Bernie.

How did you do getting the car back together after the deer hit?

Early in the Spring I'm planning a trip to Cecil. Think it's time I paid you a visit at home.
Bob

#1056248 - 03/06/18 02:14 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Mar 2012
Posts: 827
MC96 Offline
Member
MC96  Offline
Member

Joined: Mar 2012
Posts: 827
St. Johns MI
Hopefully those headlights worked out some for you. Better your garage than mine!

Last edited by MC96; 03/06/18 02:15 AM.

86 SS
400SBC, 4l80e, MSD Atomic injection/trans controller, Tilt glass clip, all tubular arms, corvette brakes, 9" rear
In progress
#1056253 - 03/06/18 04:56 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Dec 2007
Posts: 6,235
SSLance Offline
10+ Year
SSLance  Offline
10+ Year
Member

Joined: Dec 2007
Posts: 6,235
Peoria, AZ
Originally Posted by SickSpeedMonte
Yeah I got side tracked last year building the CNC and restoring my pool. And having another baby lol.

They’re powder coated now! laugh


The babies? laugh

Good to see an update Bernie!!


Lance
1985 Monte Carlo SS Street Car
#1056254 - 03/06/18 11:04 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
lmao
I told her it would be cheaper than baby clothes but she wouldn’t go for it.

I got a fender on it and with some help from Mason I got the headlight housing repaired so I’m back to driving it.

Of course you’re welcome any time!

#1056255 - 03/06/18 01:00 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Looks like I missed this page of comments from Mason and Lance.

I ended up JB Welding the cracks in my headlights back together but I did use the adjuster nuts from your housings because 3 of mine broke.

Lance, Sarah and I (well, mostly her laugh ) had #2 on our 5-year wedding anniversary back in April. He just started crawling and now the two of them are PIC's (Partners In Crime)

#1056644 - 03/27/18 12:33 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
Keeping the table busy with some gussets. I also got the rails tacked in. I had to cut one weld out (man I love having a plasma cutter!) and re-make it a hair longer to close up a gap. Other than that, they fit well. I've been CAD modeling the suspension setup and will be able to use those files to cut the control arm brackets with the table. I think I might mail the brackets to whoever I buy my rear end from and have them weld them on. I also cut out the lower trailing arm mounts on the frame so that I can make them parallel instead of diverging. I might cut a little further out to spread the arms apart as much as possible.

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

Last edited by SickSpeedMonte; 03/27/18 12:38 PM.
#1056647 - 03/27/18 03:23 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Nov 2007
Posts: 5,127
Onebadbowtie86 Offline
10+ Year
Onebadbowtie86  Offline
10+ Year
Member

Joined: Nov 2007
Posts: 5,127
Traverse City Michigan
Looking good Bernie!


'86 Monte carlo ss-Frame off resto-mod.
Ls2/t56/8.5"
#1056726 - 04/03/18 02:31 AM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
It's been slow going, but I have been making progress while learning Solidworks...

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

[Linked Image]

I did a little FEA on the spring and Panhard link brackets too, but I don't have a screenshot of that.

Next thing will be trying to package a sway bar in there. The plan is to somehow mount it below the UCA frame mount. I also need to leave room to tie the left and right together and brace that UCA mount. The 1.5" round tube was temporary, just to locate the tabs. I also need to figure out how I want to put the axle mount of the PHB in double shear.


#1056734 - 04/03/18 12:46 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jun 2006
Posts: 1,790
Travis Jones Offline
10+ Year
Travis Jones  Offline
10+ Year
Member

Joined: Jun 2006
Posts: 1,790
Ferndale, MI
Looks great! I'm assuming the model is at full compression? I'm also assuming you plan on having some sort of bumpstop on the axle tubes? I'd make sure the distance between the axle tubes and the frame is less than the upper link and the link bracket on the axle


86 SS 6.0L LQ4, TBSS intake, Summit Stage 3 NA Cam, Stainless long tube headers, Stainless 3in exhaust, Microsquirt ECU, FABbot AR5 5-speed, Eaton Truetrac 8.8 LSD, QA1 Lvl 3 Front Suspension, 3-link Rear suspension w/ UMI Control Arms, UMI Front & Rear Braces.
#1056735 - 04/03/18 12:59 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Jul 2003
Posts: 9,207
SickSpeedMonte Offline
15+ Year
SickSpeedMonte  Offline
15+ Year
Member

Joined: Jul 2003
Posts: 9,207
MD
That's actually pretty close to ride height. The LCA's should probably go down a hole or two, and a bunch of those holes are outside of the range I'm interested in and will go away. It's all mated/constrained so that it can move freely in heave and roll, so it isn't at any particular height.

The last thing that I did was to angle the LCA's out towards the rear, and that ended up pushing the LCA axle brackets outboard and under the rails. I'll have to rotate the contact with the axle under to leave more room between the axle and frame. Or move it back inboard, but I want to keep them as far apart as I can, considering I moved everything inboard 3".

Yes, I forgot to mention that I'll have to add bumpstops too. It's a lot easier to do that than to rely on the spring perches and axle brackets to take all of that force. I think I can pull those spring perches back toward the rails a bit too now that I have rotated the LCA brackets and shifted them outboard.

Good call on the upper link. It might end up curved. I'm just trying to package everything for now. I'll be really happy if I can sneak tail pipes through there somehow. I really don't want dumps, I don't have the ride height to go under the frame ahead of the tires, and I don't want to cut holes in the quarters.

#1056736 - 04/03/18 01:07 PM Re: The SickSpeedMonte [Re: SickSpeedMonte]  
Joined: Dec 2007
Posts: 6,235
SSLance Offline
10+ Year
SSLance  Offline
10+ Year
Member

Joined: Dec 2007
Posts: 6,235
Peoria, AZ
Bernie, are you friends with or follow Aaron Oberle with the 65 Chevelle? He did something very similar with his rear suspension only he built his own watts link. Both of your setups have me drooling over here...


Lance
1985 Monte Carlo SS Street Car
Page 26 of 28 1 2 24 25 26 27 28

Random Images
500/thumbs/IMG_0398s.jpg
by Turbo5
500/thumbs/0051.JPG
by SSPARKY
1101/thumbs/87_Monte_Carlo_SS1.jpg
by Duster
500/thumbs/door_panel_1_.jpg
by Rodney
500/thumbs/th_ss004-1.jpg
by sstwotimer
Help MonteCarloSS.com


Recent Contributors
finallySS
Authorized Vendors
Tell them you saw it
on MonteCarloSS.com!


CustomMonteSSParts.com
Dixie Monte Carlo Depot
GSI Interiors
HRpartsNstuff
Mikes Montes
Savitske Classic & Custom
Powered by UBB.threads™ PHP Forum Software 7.6.0