Rotary Drag Racing The place to post your racing stories and info

Rear Rebuild Questions Ford 8.8

Thread Tools
 
Search this Thread
 
Old May 9, 2011 | 03:53 PM
  #1  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Rear Rebuild Questions Ford 8.8

Guys,

I spent Saturday night with a few friends at Speedtek getting a new rear ready. None of us have ever rebuilt a Ford Rear before but followed instructions online. I have a few questions about the tooth pattern.

Preload and backlash is all set. Preload was 25 inch lbs and backlash was .009

I would like some opinions on the gear patterns please. Let me know what you guys think. Thanks Allen for the advice earlier.

Thanks,

Anthony

You can see all the pictures here, one is below. I also took pics of the coast side.

http://www.rx7s.com/rear/
Reply
Old May 9, 2011 | 04:53 PM
  #2  
sk8world's Avatar
Chasing numbers
Tenured Member 20 Years
iTrader: (5)
 
Joined: Apr 2001
Posts: 5,097
Likes: 4
From: Alabama
Post that mustang **** on the yellow bullet.. just messin with you but you will get the anwsers you need over there quick.
Reply
Old May 9, 2011 | 05:22 PM
  #3  
Bacon's Avatar
IRS 4 Life
Tenured Member: 20 Years
iTrader: (12)
 
Joined: Feb 2001
Posts: 2,634
Likes: 2
From: Sicklerville, South Jersey!!
Contact patch looks shallow, like the pinion depth is short. what'd you set pinion depth at? any # on the pinion? sometimes ive seen ford pinions with +\- #'s to give you baseline on pinion depth.

atached is nice contact pattern on a 8.8
Attached Thumbnails Rear Rebuild Questions Ford 8.8-gear-pattern.jpg   Rear Rebuild Questions Ford 8.8-coast.jpg  
Reply
Old May 9, 2011 | 07:12 PM
  #4  
enzo250's Avatar
IRS Champion
Tenured Member 10 Years
 
Joined: Aug 2001
Posts: 2,038
Likes: 1
From: NY
There's more to it then backlash.
You need to set pinion depth as bacon stated. You'll need to shim it according.
Using ford motorsport gears would allow u to use the factory shim if it was an opened rear.
Reply
Old May 10, 2011 | 01:28 AM
  #5  
13B-RX3's Avatar
7s before paint!!!
iTrader: (2)
 
Joined: Aug 2003
Posts: 3,814
Likes: 0
From: Philly/Texas
http://www.richmondgear.com/ringandpinion.pdf


Enjoy!
Reply
Old May 10, 2011 | 05:50 AM
  #6  
Bacon's Avatar
IRS 4 Life
Tenured Member: 20 Years
iTrader: (12)
 
Joined: Feb 2001
Posts: 2,634
Likes: 2
From: Sicklerville, South Jersey!!
theres also
http://www.youtube.com/user/WeberAuto

I like it better than reading

A diff is a diff, ford, toyota, mazda. Some are just harder to make minor shim changes to. Using a non lock nut for the pinion, helps for the multiple shim changes. (replace with locking nut once you get shimed it right)
Reply
Old May 10, 2011 | 05:09 PM
  #7  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Originally Posted by sk8world
Post that mustang **** on the yellow bullet.. just messin with you but you will get the anwsers you need over there quick.


Originally Posted by Bacon
Contact patch looks shallow, like the pinion depth is short. what'd you set pinion depth at? any # on the pinion? sometimes ive seen ford pinions with +\- #'s to give you baseline on pinion depth.

atached is nice contact pattern on a 8.8
Thanks!!! I think I should have taken pics of the other teeth when the gear marking compound walked over. The pics I took were the wrong ones no? We set the pinion depth according to the instructions. It should be perfect but I will double check. Yes the top of the pinion gear did have the numbers on there too.

Originally Posted by enzo250
There's more to it then backlash.
You need to set pinion depth as bacon stated. You'll need to shim it according.
Using ford motorsport gears would allow u to use the factory shim if it was an opened rear.
Thanks Enzo, the first thing we did was sent the pinion depth and then the preload, I'm going to double check everything again. I bought a crush washer elimination kit so I can easily double check it.

Originally Posted by 13B-RX3
Thanks Allen

Originally Posted by Bacon
theres also
http://www.youtube.com/user/WeberAuto

I like it better than reading

A diff is a diff, ford, toyota, mazda. Some are just harder to make minor shim changes to. Using a non lock nut for the pinion, helps for the multiple shim changes. (replace with locking nut once you get shimed it right)
I love videos lol Thanks!!!
Reply
Old May 10, 2011 | 09:52 PM
  #8  
RoTaRyBoYz's Avatar
InsaneRotaries.com
Tenured Member 15 Years
 
Joined: Feb 2002
Posts: 2,748
Likes: 0
From: Westchester, NY
Take it to mustang magic in Deer park.. That's what I did Less stress for me

I rebuilt those sucks like 10yrs ago in tech school but forgot just about everything :-(
Reply
Old May 11, 2011 | 11:17 PM
  #9  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Originally Posted by RoTaRyBoYz
Take it to mustang magic in Deer park.. That's what I did Less stress for me

I rebuilt those sucks like 10yrs ago in tech school but forgot just about everything :-(
Yeah I know, funny thing is that they are walking distance from my house too so I was thinking the same thing. I really just want to learn how to do it properly myself. There are so many little tricks. For example, I spoke to Allen and told him I hated having to press the pinion bearing on and off and he explained to me an easy way to do it.

Hone your OLD bearing so it slides on and off, then take your measurements, once pinion depth is set correctly, press the new bearing on. That's pretty smart.

I'm surprised Allen and Cris are still taking my calls lol.
Reply
Old May 11, 2011 | 11:47 PM
  #10  
RoTaRyBoYz's Avatar
InsaneRotaries.com
Tenured Member 15 Years
 
Joined: Feb 2002
Posts: 2,748
Likes: 0
From: Westchester, NY
Did he tell you about the ole Pinion in the oven trick to get the bearing on?

Told you I have a new 8.8 rebuilt kit here with everything.. Hope you didn't go out and buy all new bearings etc
Reply
Old May 12, 2011 | 05:50 AM
  #11  
Judge Ito's Avatar
Rotary Freak
Tenured Member 15 Years
 
Joined: Oct 2001
Posts: 1,568
Likes: 2
From: N.J. USA
anthony is feeling the pressure!!!
Reply
Old May 12, 2011 | 09:52 PM
  #12  
SPEED_NYC's Avatar
RX-Parts
Tenured Member 10 Years
iTrader: (3)
 
Joined: Mar 2001
Posts: 2,368
Likes: 1
From: Queens, NY
Originally Posted by Judge Ito
anthony is feeling the pressure!!!
LOL

I'll be helping Anthony install the 8.8 tomorrow night over at speed tek. I have a strong feeling he'll be in the very low 9's this season..... but I'm enjoying the view from up top for the short time i'll be here....
Reply
Old May 13, 2011 | 02:15 PM
  #13  
MOBEONER's Avatar
It's finally reliable
Tenured Member: 20 Years
Liked
iTrader: (18)
 
Joined: May 2004
Posts: 3,514
Likes: 10
From: NEW YORK CITY
It's gonna be a good year
I can't wait to see everyone at the track this year, it's going to be a pleasure to see the rotaries put it down.
Reply
Old May 13, 2011 | 03:02 PM
  #14  
sk8world's Avatar
Chasing numbers
Tenured Member 20 Years
iTrader: (5)
 
Joined: Apr 2001
Posts: 5,097
Likes: 4
From: Alabama
What gear ratio you guys running now?
Reply
Old May 13, 2011 | 11:09 PM
  #15  
ultimatejay's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2006
Posts: 4,148
Likes: 4
From: California
Originally Posted by sk8world
What gear ratio you guys running now?
There's too much competition for secrets now.
Reply
Old May 15, 2011 | 02:05 PM
  #16  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Originally Posted by sk8world
What gear ratio you guys running now?
I'm running a 4.3, Roan is on a 4.56, both are Ford Motorsports gears.


Originally Posted by ultimatejay
There's too much competition for secrets now.
Never!

Originally Posted by SPEED_NYC
LOL

I'll be helping Anthony install the 8.8 tomorrow night over at speed tek. I have a strong feeling he'll be in the very low 9's this season..... but I'm enjoying the view from up top for the short time i'll be here....
Thanks Roan, we'll know soon.

Originally Posted by Judge Ito
anthony is feeling the pressure!!!
Yes lol!
Reply
Old May 15, 2011 | 02:07 PM
  #17  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Thanks for the videos and help with the rear. I am done with it. Roan and I spent quite some time at Speedtek and put it in the car. I swapped over to a 94 subframe so the Justin Samberg rear bolted easily into place. All should be good. Just waiting on a driveshaft now...
Reply
Old May 15, 2011 | 03:51 PM
  #18  
ultimatejay's Avatar
Eats, Sleeps, Dreams Rotary
Tenured Member 10 Years
iTrader: (1)
 
Joined: Nov 2006
Posts: 4,148
Likes: 4
From: California
Originally Posted by AnthonyNYC
Thanks for the videos and help with the rear. I am done with it. Roan and I spent quite some time at Speedtek and put it in the car. I swapped over to a 94 subframe so the Justin Samberg rear bolted easily into place. All should be good. Just waiting on a driveshaft now...
Anthony, do you have any pictures of the rearend in your car?
Reply
Old May 15, 2011 | 09:59 PM
  #19  
ErnieT's Avatar
Living life 9 seconds at a time
Tenured Member: 20 Years
iTrader: (2)
 
Joined: Feb 2001
Posts: 6,541
Likes: 0
From: Abingdon, Md
I predict he'll skip the 9's.....
Reply
Old May 15, 2011 | 10:24 PM
  #20  
sk8world's Avatar
Chasing numbers
Tenured Member 20 Years
iTrader: (5)
 
Joined: Apr 2001
Posts: 5,097
Likes: 4
From: Alabama
Originally Posted by ErnieT
I predict he'll skip the 9's.....

me too!
Reply
Old May 16, 2011 | 01:11 AM
  #21  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Originally Posted by sk8world
me too!
Originally Posted by ErnieT
I predict he'll skip the 9's.....
No way! It's still a 2800lb FD making 600HP!!! I'm just trying to get into the 9s right now lol.

Originally Posted by ultimatejay
Anthony, do you have any pictures of the rearend in your car?
Yes Jay, I'll pull them off my phone in a few minutes and post them.
Reply
Old May 16, 2011 | 02:31 AM
  #22  
AnthonyNYC's Avatar
Thread Starter
Stay tuned...
Tenured Member 20 Years
iTrader: (3)
 
Joined: Jul 1997
Posts: 2,917
Likes: 1
From: West Islip, Long Island NY
Jay,

Here are 2 pics, one of the in the car. The subframe adapter is made by Justin Samberg but I got it through SpeedNYC. He knows Justin and has bought a few so I paid him and he took care of it for me. I believe others also bought their subframes from Roan.





Attached Thumbnails Rear Rebuild Questions Ford 8.8-1.jpeg   Rear Rebuild Questions Ford 8.8-3.jpeg   Rear Rebuild Questions Ford 8.8-4.jpeg  
Reply
Old May 16, 2011 | 09:27 AM
  #23  
justturbo2's Avatar
Registered User
Tenured Member: 20 Years
iTrader: (4)
 
Joined: Jan 2005
Posts: 1,576
Likes: 0
From: new york
Looking good Ant.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Th0m4s
Build Threads
25
Feb 26, 2019 02:04 AM
ItsJBohmzB
Build Threads
171
Apr 24, 2017 01:11 PM
Marty RE
New Member RX-7 Technical
0
Aug 13, 2015 11:19 AM




All times are GMT -5. The time now is 08:16 AM.