Pontiac - Street No question too basic here!

          
Reply
 
Thread Tools Display Modes
  #1  
Old 11-26-2021, 08:02 PM
dhcarguy's Avatar
dhcarguy dhcarguy is offline
Ultimate Warrior
 
Join Date: Oct 2003
Location: pa., usa.
Posts: 1,483
Default Rear question

I was told by previous owner that the rear in my car is out of a 1970 GTO or Lemans. It's a 3:90, limited slip rear.
Here are some pictures.
Is this an 8.2 or 8.5??
Attached Thumbnails
Click image for larger version

Name:	DSCN2560.jpg
Views:	133
Size:	67.2 KB
ID:	578635   Click image for larger version

Name:	DSCN2558.jpg
Views:	113
Size:	44.6 KB
ID:	578636   Click image for larger version

Name:	DSCN2557.jpg
Views:	100
Size:	78.0 KB
ID:	578637   Click image for larger version

Name:	DSCN2532.jpg
Views:	114
Size:	60.5 KB
ID:	578638   Click image for larger version

Name:	DSCN2561.jpg
Views:	91
Size:	43.8 KB
ID:	578639  


  #2  
Old 11-26-2021, 08:09 PM
steve25's Avatar
steve25 steve25 is offline
Ultimate Warrior
 
Join Date: May 2008
Location: Westchester NY
Posts: 14,736
Default

XK is indeed the code for a 70 400 4 bbl rear with 3.90 gears!

It’s 8.2”.

__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
  #3  
Old 11-26-2021, 08:19 PM
dhcarguy's Avatar
dhcarguy dhcarguy is offline
Ultimate Warrior
 
Join Date: Oct 2003
Location: pa., usa.
Posts: 1,483
Default

Quote:
Originally Posted by steve25 View Post
XK is indeed the code for a 70 400 4 bbl rear with 3.90 gears!

It’s 8.2”.
Thanks Steve,
Strange only lists a HD 1350 series rear yoke for 8.5 GM rears. Will that one also fit my 8.2 rear?

Thanks, Dave

  #4  
Old 11-27-2021, 09:16 AM
chrisp chrisp is offline
Ultimate Warrior
 
Join Date: Jul 2008
Location: upper dublin Pa.
Posts: 2,940
Default

Quote:
Originally Posted by dhcarguy View Post
Thanks Steve,
Strange only lists a HD 1350 series rear yoke for 8.5 GM rears. Will that one also fit my 8.2 rear?

Thanks, Dave
No that will not fit.

  #5  
Old 11-27-2021, 09:27 AM
steve25's Avatar
steve25 steve25 is offline
Ultimate Warrior
 
Join Date: May 2008
Location: Westchester NY
Posts: 14,736
Default

When enough torque is applied those 8.2 posi units fail long before a stock yoke does from what I have seen over the years!

__________________
Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!

1) 1940s 100% silver 4 cup tea server set.

Two dry rotted 14 x 10 Micky Thompson slicks.

1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.

Education is what your left with once you forget things!
Reply


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 02:17 AM.

 

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