First timer Leaf Springs C30 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**Android04** · 07-12-2021, 05:53 PM

Please forgive my ignorance as I'm sure this is a silly question for most.

I'm in the process of finishing my 1985 C30 build and noticed I had a few broken leaf springs, so I ordered a new set. Before installing do they have a specific orientation? If not then good, but I believe they do and wanted to make sure I do the job right the first time.

So can someone please share with me how to identify which eye goes where. Thanks again everyone.

5Tractorguy · 07-12-2021, 06:28 PM

Replaced the leaf packs in my C30 service truck last year. If you measure from each eye to the locating pin/bolt on top, one measurement is longer than the other. If your leaves are still installed, just measure before removing and install the new packs the same way.

They will fit either way, but your axle will sit further one way or another.

If you need the orientation I can go measure my truck...

**mongocanfly** · 07-12-2021, 07:25 PM

Front 26in
Rear 31in
Just quick measure..may be +- a tad..

**kwmech** · 07-13-2021, 11:28 AM

Yup, short side usually goes forward. If you are off, the center of the spring pack will not be in alignment with the spring snubber

**Android04** · 07-13-2021, 09:14 PM

Perfect thank you all so much. I measured them today and marked the front and rear. Will be installing them this weekend!

07-12-2021, 05:53 PM	#1
Android04 Senior Member Join Date: Aug 2017 Location: Louisville, KY Posts: 380	First timer Leaf Springs C30 Please forgive my ignorance as I'm sure this is a silly question for most. I'm in the process of finishing my 1985 C30 build and noticed I had a few broken leaf springs, so I ordered a new set. Before installing do they have a specific orientation? If not then good, but I believe they do and wanted to make sure I do the job right the first time. So can someone please share with me how to identify which eye goes where. Thanks again everyone.

07-12-2021, 06:28 PM	#2
5Tractorguy Registered User Join Date: May 2015 Location: Central Massachusetts Posts: 496	Re: First timer Leaf Springs C30 Replaced the leaf packs in my C30 service truck last year. If you measure from each eye to the locating pin/bolt on top, one measurement is longer than the other. If your leaves are still installed, just measure before removing and install the new packs the same way. They will fit either way, but your axle will sit further one way or another. If you need the orientation I can go measure my truck... __________________ Jake 5Tractorguy on Youtube

07-12-2021, 07:25 PM	#3
mongocanfly Post Whore Join Date: May 2015 Location: Alabama Posts: 14,670	Re: First timer Leaf Springs C30 Front 26in Rear 31in Just quick measure..may be +- a tad.. __________________ Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver

07-13-2021, 11:28 AM	#4
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,634	Re: First timer Leaf Springs C30 Yup, short side usually goes forward. If you are off, the center of the spring pack will not be in alignment with the spring snubber

07-13-2021, 09:14 PM	#5
Android04 Senior Member Join Date: Aug 2017 Location: Louisville, KY Posts: 380	Re: First timer Leaf Springs C30 Perfect thank you all so much. I measured them today and marked the front and rear. Will be installing them this weekend!



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