??? P-30 springs on an ‘82 C30 crewcab Cummins - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wbmoore · 04-20-2020, 12:12 AM

I believe P/30s are the bread van, food truck type vehicle. Someone up in Seattle used a pair P/30 front coil springs for a 90’s GM crew cab/Cummins swap to handle the extra weight. Has anyone here one that. Does anyone with an earlier TWD square body swap have thoughts on whether beefier springs are needed ? My truck is an ‘82 1-ton. Thanks for the input.

**Dieselwrencher** · 04-23-2020, 11:22 PM

I've done a couple C30 12v swaps and The front end sat just a little lower than with the BBC and I left the suspension alone. They drove really nice so I felt they were alright.

wbmoore · 04-25-2020, 12:02 PM

Wrencher.....that’s good to know. I found a business that seems to know about swapping the stock coils for the much beefier P30s. I’ll see if they (General Spring) get back to me.
Seeing as you’ve done this, I might throw some questions your way. Were your C30/12Vs used to tow ? Thanks for the input.

04-20-2020, 12:12 AM	#1
wbmoore Registered User Join Date: Jul 2001 Location: Big Bar, California Posts: 136	??? P-30 springs on an ‘82 C30 crewcab Cummins I believe P/30s are the bread van, food truck type vehicle. Someone up in Seattle used a pair P/30 front coil springs for a 90’s GM crew cab/Cummins swap to handle the extra weight. Has anyone here one that. Does anyone with an earlier TWD square body swap have thoughts on whether beefier springs are needed ? My truck is an ‘82 1-ton. Thanks for the input. __________________ 1967 GMC 3500 lwb dump flatbed project 1969 GMC 2500 1979 GMC 7000 fire crew truck w/water pumps 1982 C/30 Cummins NV5600 Crew Cab project

04-23-2020, 11:22 PM	#2
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: ??? P-30 springs on an ‘82 C30 crewcab Cummins I've done a couple C30 12v swaps and The front end sat just a little lower than with the BBC and I left the suspension alone. They drove really nice so I felt they were alright. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*

04-25-2020, 12:02 PM	#3
wbmoore Registered User Join Date: Jul 2001 Location: Big Bar, California Posts: 136	Re: ??? P-30 springs on an ‘82 C30 crewcab Cummins Wrencher.....that’s good to know. I found a business that seems to know about swapping the stock coils for the much beefier P30s. I’ll see if they (General Spring) get back to me. Seeing as you’ve done this, I might throw some questions your way. Were your C30/12Vs used to tow ? Thanks for the input. __________________ 1967 GMC 3500 lwb dump flatbed project 1969 GMC 2500 1979 GMC 7000 fire crew truck w/water pumps 1982 C/30 Cummins NV5600 Crew Cab project



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