'Stock' replacement spring questions - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chaileyk5 · 10-18-2023, 08:29 PM

Getting ready to start the refurb (again), and have some stock spring questions. Somewhere around 2000 I put a set of 2.5in springs up front with blocks in the rear. I'm wanting to go back to stock height, and am looking at one of the online spring places (General Spring, SD Truck Spring, etc.).

For the fronts, what is the thought between the 2 leaf vs 3 leaf? I think the originals were 2, but I'm not positive. I assume the 3 leaf will ride a bit rougher (I'm thinking Bilsteins to help), but is there anything else to take into consideration?

For the rear, I was thinking about keeping the 51 year old stock springs with 2in blocks to help level it out - any potential issues with this? Or should I just pull the trigger on the 5/1 leaf replacements?

Last question - does anybody have the correct model number for stock size Bilsteins, front and rear? I'm only seeing two choices on their site (part 24-009232 and 24-192941) - both are showing as front, but I'm not sure what the difference is.

Thanks for the help!

**1970cstblazer** · 10-18-2023, 08:41 PM

My '70 has 3 leaf front springs, but it is optioned with F60 Heavy Duty front springs.

chaileyk5 · 10-18-2023, 10:06 PM

Good call - didn’t even think to check the options. I’ll take a look tomorrow to see what came from the factory. Thanks!

**Richard** · 10-26-2023, 02:52 AM

IMO, look for a cheap standard hydraulic shock for a stock leaf or even the stiff aftermarket lift offerings. A gas type shock will just make the ride firmer. Stiff spring + stiff shock = uncomfortable.

10-18-2023, 08:29 PM	#1
chaileyk5 Registered User Join Date: Jan 2008 Location: Chattanooga, TN Posts: 9	'Stock' replacement spring questions Getting ready to start the refurb (again), and have some stock spring questions. Somewhere around 2000 I put a set of 2.5in springs up front with blocks in the rear. I'm wanting to go back to stock height, and am looking at one of the online spring places (General Spring, SD Truck Spring, etc.). For the fronts, what is the thought between the 2 leaf vs 3 leaf? I think the originals were 2, but I'm not positive. I assume the 3 leaf will ride a bit rougher (I'm thinking Bilsteins to help), but is there anything else to take into consideration? For the rear, I was thinking about keeping the 51 year old stock springs with 2in blocks to help level it out - any potential issues with this? Or should I just pull the trigger on the 5/1 leaf replacements? Last question - does anybody have the correct model number for stock size Bilsteins, front and rear? I'm only seeing two choices on their site (part 24-009232 and 24-192941) - both are showing as front, but I'm not sure what the difference is. Thanks for the help!

10-18-2023, 08:41 PM	#2
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 1,853	Re: 'Stock' replacement spring questions My '70 has 3 leaf front springs, but it is optioned with F60 Heavy Duty front springs. __________________ 1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels

10-18-2023, 10:06 PM	#3
chaileyk5 Registered User Join Date: Jan 2008 Location: Chattanooga, TN Posts: 9	Re: 'Stock' replacement spring questions Good call - didn’t even think to check the options. I’ll take a look tomorrow to see what came from the factory. Thanks!

10-26-2023, 02:52 AM	#4
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,896	Re: 'Stock' replacement spring questions IMO, look for a cheap standard hydraulic shock for a stock leaf or even the stiff aftermarket lift offerings. A gas type shock will just make the ride firmer. Stiff spring + stiff shock = uncomfortable. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746



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