#1  
Old 01-29-2025, 02:16 PM
Iggy Iggy is offline
Junior Member
 
Join Date: Dec 2024
Location: Glen Arbor, MI & Iron River, MI
Posts: 5
Default Front and Rear Springs for a 1974 GP

I recently purchased a 1974 Grand Prix Model J with front and rear factory sway bars and have it stored for the winter. When I brought it home I noticed the springs seem soft and worn out and suspect I will need to replace them when I get it out in the spring. I noticed looking for springs that it is easy to find a variable-rate rear, almost impossible to find a standard rear spring (constant rate) and just as hard to find a front spring for a car with factory A/C! OPGI has the constant rate rear, and Rock Auto has the front (Husky Brand) for A/C cars.

What I would like to know is who has experience with any of these on their 73-77 and is it good or bad. I have used variable rate coils on several vehicles in the past, station wagons I was using for hauling both a trailer and stuff packed in the back. Would that be a good choice for a non-daily driver or would I be better off with a constant rate spring? Are the springs sold through OPGI any good? Anyone have any experience with Husky Springs, if so are they any good? Thank you in advance. Tom

  #2  
Old 01-29-2025, 04:25 PM
Green Elephant Green Elephant is online now
Junior Member
 
Join Date: Dec 2024
Location: Eastern NE
Posts: 23
Default

Call Eaton Detroit Spring and talk to them about what your interested in for a stance and ride. You can find their contact info on the internet. I purchased rear springs for my 1963 Grand Prix and was very happy with the car and how it sat. That’s all they do is springs and they are easy to work with.

  #3  
Old 01-29-2025, 05:04 PM
camerjeff's Avatar
camerjeff camerjeff is offline
Ultimate Warrior
 
Join Date: Dec 2004
Location: Belleville , Mi
Posts: 2,059
Default

I agree with Green Elephant, Detroit Eaton spring was probably the original supplier for the springs on your car, they still have all the blue prints for all the springs they provided GM back in the day. They have provided my a couple of sets of odd ball Pontiac springs in the past, and I have been very happy with the resaults.

__________________
Jeff R
60 Jaguar Mark 2, 3.8L Automatic
67 Sprint Firebird 230 OHC-6 4-Speed A/C
78 Catlina Safari, Pontiac 400 powered
77 Astre Formula, 215 Buick V-8 T-5
73 Lemans Safari, 400 4bbl 4-speed
71 Catalina Enforcer, 455 4bbl
06 Mallet Solstice #024 LS2, Now with a Tremec 6060 6-speed!
2012 F-150 Echo Boost (My local Ford Dealer SUX!!!)
2020 Dodge Charger Scat pack (recovered)
The Following User Says Thank You to camerjeff For This Useful Post:
  #4  
Old 01-30-2025, 12:29 PM
Iggy Iggy is offline
Junior Member
 
Join Date: Dec 2024
Location: Glen Arbor, MI & Iron River, MI
Posts: 5
Default

Thank you, I will give them a call! I had issues with Moog springs I purchased for a 1969 GP 10 years ago, the rear springs were OK and the front needed to be cut one full coil to get the front to sit right. I wanted something better than "one size fits all" and from the looks of their site they will be a better choice. Tom

  #5  
Old 01-30-2025, 08:50 PM
694.1 694.1 is offline
Ultimate Warrior
 
Join Date: Jul 2010
Location: SE WI
Posts: 1,422
Default

Trans Am springs for the front.

__________________
"At no time did we exceed 175 mph.”
Dan Gurney's truthful response to his and Brock Yate's winning of the first ever Cannonball Baker Sea-to-Shining Sea...

Still have my 1st Firebird
7th Firebird
57 Starchief
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 12:40 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