Old 07-28-2022, 02:29 PM
SD421's Avatar
SD421 SD421 is offline
Ultimate Warrior
Join Date: Jan 2005
Location: Concord,CA
Posts: 1,147
Default Hop Stop Bars Issue

Hey anyone,
I have HO racing hop stop bars from 1994 in my GTO. The problem I’m now having is that the attaching point on the differential keeps coming loose on me.. The original attachment is one big square piece of metal washer where the bolt goes thru to center it.
I have looked at The other hop stop bars and they have an actual metal bushing to help keep the bolt located in the differential.

Has anyone been able to purchase just these metal bushings?

The first pic is of with the HR racing bars look like with that square metal washer. The second pic is of the metal bushings I’m looking to find.

Attached Thumbnails
Click image for larger version

Name:	27A68527-B11B-4461-8766-CC9FFA652821.jpg
Views:	103
Size:	33.5 KB
ID:	595127   Click image for larger version

Name:	FDA860FA-1FFD-4790-9411-10BF2A465B93.jpg
Views:	112
Size:	39.4 KB
ID:	595128  


1966 GTO

1966 421-9.3-1 comp-Race Tec 23cc Pistons
1966 Tri-Power
1967 670 Heads
Pontiac "Highlift" TriPower Cam by SpeedPro
DUR 214 Int 224 Exh @.050 - 107 ICL
LIFT .445" Int .465" Exh
Tri-Y-Headers by Tribal Tubes w/ Goerlich Mufflers
1966 Muncie Wide Ratio 4-Speed
1968-72 Chevy 12 Bolt Rear End w/ 3.73 rear gears

Last edited by SD421; 07-28-2022 at 02:31 PM. Reason: Correct Spelling
Old 07-29-2022, 12:10 AM
67ramair4's Avatar
67ramair4 67ramair4 is offline
Senior Chief
Join Date: Jan 2003
Location: Collierville, TN.
Posts: 253
Exclamation Hop stop bars issue

I had the identical set on my car for over 20 years, never had to tighten them! Center the raised portion in the bushing hole, use new lockwashers on top of the square piece and torque down.

The Following User Says Thank You to 67ramair4 For This Useful Post:
Old 07-29-2022, 12:32 AM
Scarebird's Avatar
Scarebird Scarebird is offline
Ultimate Warrior
Join Date: Nov 2002
Location: ABQ, USA
Posts: 4,967


The Following User Says Thank You to Scarebird For This Useful Post:

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 01:30 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