#1  
Old 05-22-2021, 09:04 AM
Ponty Ponty is offline
Junior Member
 
Join Date: Jun 2020
Posts: 11
Default 1968 Bonneville rear diff mounting brackets.

Hi,

As parts are not readily available for the BOP diffs here in Australia I'm thinking about installing a Ford 9" into my 68 Bonneville Coupe. Can anyone tell me if there is a company in the US that manufactures the OE mounting brackets for the springs, rear shock mounts & the upper & lower control arms? Thanks.

  #2  
Old 05-22-2021, 09:25 AM
Stuart's Avatar
Stuart Stuart is offline
Moderator
 
Join Date: Apr 2003
Location: Minneapolis
Posts: 7,938
Default

9" Ford rear axles are commonly available for A body (GTO) and Body (Firebird) cars, but I'm not aware of anyone who has them ready made for B body big Pontiacs. That doesn't mean they aren't available, I just haven't heard of them. Probably the biggest name in the game is Currie - you could try contact contacting them to see if they can help. https://www.currieenterprises.com

I've been watching some YouTube channels from car builders in Australia, and I've noticed they use 9" Ford rear ends in some of their projects. It appears they get them from Hughes Performance, since they're in country for you that's another possibility. https://www.superformance.com.au/products/differentials I also found a listing for Outlaw Performance which is a speed shop in Adelaide, they import and sell 9" Ford parts and may have more contacts that they deal with in the US - I imagine getting parts shipped from there to there isn't easy or cheap. https://outlawspeed.com.au/shop/tech...form_rear_axle

  #3  
Old 05-22-2021, 10:56 AM
'ol Pinion head 'ol Pinion head is offline
Ultimate Warrior
 
Join Date: Apr 2000
Location: INJUN Territory, Red State Merica!
Posts: 9,567
Default P series Pontiac, not "BOP"

The rears in '65-70 US built big Pontiacs are P series 8 7/8" rears.
You will need to find someone who has a clean loose housing or rear to have the outer shock/lower control arms removed from. Have cut the last 15" off many an early 8.2 A-body housing to later remove the outer brackets for use. Unfortunately, don't buy '69 & '70 Bonne's as partscars anymore & am out of housing ends for these. The housings for the '65-70 P series rearends are divided into early & late styles as far as bracket mtg goes. As long as you stick to an original P series rear for donor brackets from a '68-70 B series Pontiac, you should be fine. Upper control arm mounts will have to fabricated...typical course of action on 9" housing swaps.

__________________
Buzzards gotta eat... same as worms.
  #4  
Old 05-23-2021, 07:59 AM
Ponty Ponty is offline
Junior Member
 
Join Date: Jun 2020
Posts: 11
Default

Have found a place in Oz, much to my surprise , that can build a 9" to my specs & supply all the mounting brackets for the conversion into the Bonneville. As well as supplying axles with the 5 x 127 bolt pattern.

  #5  
Old 05-19-2022, 02:35 PM
HWYSTR455's Avatar
HWYSTR455 HWYSTR455 is offline
Ultimate Warrior
 
Join Date: Jan 2005
Location: Manassas, VA
Posts: 14,658
Default

Quote:
Originally Posted by Ponty View Post
Have found a place in Oz, much to my surprise , that can build a 9" to my specs & supply all the mounting brackets for the conversion into the Bonneville. As well as supplying axles with the 5 x 127 bolt pattern.
Could you provide who that vendor is please?

.

__________________
.

1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
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


All times are GMT -4. The time now is 03:34 PM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017