QA1 BOLT-IN Coil-Overs for 73-77!!

by oldstofty Mon Mar 14, 2016 1:15 pm

QA1 has finally answered our wishes and is now producing Bolt IN Rear Coil overs for the 73-77 A Body Cars. I just ordered up a set for the rear using Part number RCK52371 which is a dual adjustable shock with 170lb springs. None of the big box stores (Jegs or Summit) even list this part number yet.

QA1 BOLT-IN Coil-Overs for 73-77!! 20160310_194741_zpshd8zlwb5

QA1 BOLT-IN Coil-Overs for 73-77!! 20160310_194741_zpshd8zlwb5

by thatfnthing Mon Mar 14, 2016 2:24 pm

I'd be interested to see pictures of the install. How much do they run?

by oldstofty Mon Mar 14, 2016 3:44 pm

I paid $700.00, as for install, the top bracket you enlarge the factory holes and bolt up that bracket. The bottom bracket you bolt thru the factory hole then drill another hole for the top of the bracket.

It offsets the shock to get it away from the Lower Control Arm

by pila Mon Mar 14, 2016 7:43 pm

I know very little about the coil-over mods. What is the advantage over the usual suspension ?? Do you remove the OEM springs ??

Just wonderin' Very Happy

by bracketchev1221 Mon Mar 14, 2016 7:48 pm

Yes you remove the factory springs. The major advantage is the adjustable shock.

by oldstofty Wed Mar 16, 2016 8:28 am

Like Bracket said the major advantage is the Double adjustable shock, being able to adjust the rebound and compression. the coil over spring is just a convenience for setting ride height

by SSTOOLMAN Wed Mar 16, 2016 1:15 pm

I would assume you can set ride height also??

by bracketchev1221 Wed Mar 16, 2016 2:06 pm

SSTOOLMAN wrote:I would assume you can set ride height also??

To a certain point. The shock needs to be pretty centralized for up and down travel. There is usually a recommended eye to eye length range for the shock. If you can't get within the eye to eye range with the adjusting collars then it is time to change spring rates.

by BBMALIBU Tue Mar 22, 2016 11:59 am

bracketchev1221 wrote:The major advantage is the adjustable shock.

oldstofty wrote:Like Bracket said the major advantage is the Double adjustable shock, being able to adjust the rebound and compression.

Not suggesting how to spend ones money; but since the major advantage is an adjustable shock, why go through the trouble and added expense? Why not simply install adjustable shocks and be done?

I know that coil over mods are used on some cars for tire clearance, but if that is not the case..why do it?

by 74Malibu383 Tue Mar 22, 2016 4:07 pm

I've been running the QA-1 double adjustable coil overs for years. I love them. Not just for the adjustable shock portion but for the ride height adjustment as well. When I load the car up with an extra ton of crap for a long trip, I can adjust the ride height back to what I want it to be.

As for the complete "bolt in" brackets - That's awesome! I also like how they put the bottom mount into double sheer... That's solid.

by bracketchev1221 Wed Mar 23, 2016 7:27 am

BBMALIBU wrote:
bracketchev1221 wrote:The major advantage is the adjustable shock.

oldstofty wrote:Like Bracket said the major advantage is the Double adjustable shock, being able to adjust the rebound and compression.

Not suggesting how to spend ones money; but since the major advantage is an adjustable shock, why go through the trouble and added expense? Why not simply install adjustable shocks and be done?

I know that coil over mods are used on some cars for tire clearance, but if that is not the case..why do it?

It allows you to pinpoint the spring rate too. Otherwise, you can try hunting through the Moog catalog to find a spring of the right rate and height.

by oldstofty Wed Mar 23, 2016 12:37 pm

brackets ended up needing a little grinding to fit in the upper mount area but they are in and car is sitting awesome. I wanted adjustable springs to be able to change ride height if i change to a taller or shorter slick. Also my old springs had been heated to try to get the right stance and they flat out sucked. Fitted the new fiberglass hood last night now off to get the cowl molded to it and painted.

by Limey SE Wed Mar 23, 2016 8:47 pm

Cant wait to see it Eric

by 74Malibu383 Thu Mar 24, 2016 12:07 pm

Photos?

by SSTOOLMAN Thu Mar 24, 2016 12:41 pm

oldstofty wrote:brackets ended up needing a little grinding to fit in the upper mount area but they are in and car is sitting awesome. I wanted adjustable springs to be able to change ride height if i change to a taller or shorter slick. Also my old springs had been heated to try to get the right stance and they flat out sucked. Fitted the new fiberglass hood last night now off to get the cowl molded to it and painted.

How much ride height range is there? one inch? 2 inches?

by alowerlevel Thu Mar 24, 2016 12:57 pm

Looks like they have some info on their site http://www.qa1.net/about/news/qa1-offers-rear-coil-over-conversion-kits-for-1973-1977-gm-a-bodies/
And the product page http://www.qa1.net/suspension/street-performance-racing-shocks-struts-and-pro-coil-systems/rear-pro-coil-shock-systems/73-77-gm-abody-rear-pro-coil-system

by oldstofty Mon Mar 28, 2016 11:16 am

That info wasnt even on their website when i ordered them a few weeks ago.

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QA1 BOLT-IN Coil-Overs for 73-77!!

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Re: QA1 BOLT-IN Coil-Overs for 73-77!!