Minimum amount of space between axle and frame?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

TIMSPEED · 05-19-2004, 08:10 PM

On my 75 C10, how much space do I need between the axle tube, and the framerail, before I need to add a C-Notch? Would 2" Be too little space and I would run into bottoming-out problems?

**Captkaos** · 05-19-2004, 08:50 PM

If you don't mind it beating the heck out of the frame 2" isn't bad..

Bowtie67 · 05-19-2004, 09:05 PM

I went 3" on mine and the guys I purchased my 4link from said 3" as well. If you have a heavy setup of a suspension you should be able to get away with 2" but always keep in mind if you load it up to check how much room is here so not to damage anything.

BaggedC10 · 05-19-2004, 09:37 PM

Don't be a wimp, install a notch.

UltraDresser · 05-19-2004, 10:23 PM

so is the essence of the opinion of this mod is ... if you flip your rr axle.... "C" notch the frame?? I dedeuce correctly???

**swervin ervin** · 05-19-2004, 11:13 PM

Yes, you deduce correctly. I used a shackle in the lower hole and a 5" flip kit, which gave me a 6" drop. I had 2-3/4" left in clearance between the frame and axle tube. I drove it this way for a few weeks. After one too many teeth rattling, bone jarring bumps, I installed a notch.

Tim,

install a notch in that thing and be done with it.

TIMSPEED · 05-20-2004, 01:23 AM

Well, right now, I have a FULL 5" of distance between the top of the axle, and the frame, so I think if I do the WC Shackles, and put them in the bottom hole and get the 1" of drop or so, I'll be ok. I probably will end up notching it though...

crazy longhorn · 05-20-2004, 08:28 AM

I have 2 1/2" tween the axle & rails on my longhorn. it hasnt caused any problems, but those old leaf springs were pretty stiff. i do agree with the rest of the guys tho, you need a minimum of about 3" for a civilized ride. crazyL

UltraDresser · 05-20-2004, 10:51 AM

is the 2" measurement with truck on load to ground? from bump stop to rail?

Bowtie67 · 05-20-2004, 02:16 PM

Quote:

Originally Posted by UltraDresser

is the 2" measurement with truck on load to ground? from bump stop to rail?

From frame rail to axle housing unloaded, I think that is the question your getting at. Thats not a whole lot of room especially with trailing arms and stock style springs, 200lbs will drop this pretty close to an inch and if you hit a pot hole or something it'll hit the frame.. BANG! You now have a dent housing and a little more clearance.

05-19-2004, 08:10 PM	#1
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	Minimum amount of space between axle and frame?? On my 75 C10, how much space do I need between the axle tube, and the framerail, before I need to add a C-Notch? Would 2" Be too little space and I would run into bottoming-out problems? __________________ I have a few cars... See Them Here

05-19-2004, 08:50 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	If you don't mind it beating the heck out of the frame 2" isn't bad.. __________________ Chris Lucas 1973 Chevy C-10 1978 GMC Jimmy (2WD) - SOLD 1987 R10 twin turbo LS 1991 R3500 SRW CrewCab 1985 K5 diesel swapped project 1989 K5 2WD conversion w/ Vette susp Project Captkaos Customs 73-87chevytrucks.com

05-19-2004, 09:05 PM	#3
Bowtie67 Registered User Join Date: Jan 2004 Location: NH Posts: 2,266	I went 3" on mine and the guys I purchased my 4link from said 3" as well. If you have a heavy setup of a suspension you should be able to get away with 2" but always keep in mind if you load it up to check how much room is here so not to damage anything. __________________ 1967 C10 - SWBSS Pro Street 427sbc, 700R4 & 4.10 Gears 1948 Chevy FleetMaster Coupe, LS1, (almost done) 1950 Chevy StyleLine Coupe 250/6 3x2 Dueces 2009 Toyota Tundra 1996 Harley RoadKing "I maybe getting old, but I can still burn rubber with the best of them"

05-19-2004, 09:37 PM	#4
BaggedC10 Under construction! Join Date: Aug 2002 Location: NorCal Posts: 1,065	Don't be a wimp, install a notch. __________________ 2001 Silverado bagged on 22's. Sold

05-19-2004, 11:13 PM	#6
swervin ervin You get what you pay for Join Date: Dec 1999 Location: Cherryville, NC Posts: 4,798	Yes, you deduce correctly. I used a shackle in the lower hole and a 5" flip kit, which gave me a 6" drop. I had 2-3/4" left in clearance between the frame and axle tube. I drove it this way for a few weeks. After one too many teeth rattling, bone jarring bumps, I installed a notch. Tim, install a notch in that thing and be done with it. __________________ Mike 1985 Chevy C-10

05-19-2004, 10:23 PM	#5
UltraDresser Registered User Join Date: Mar 2004 Location: Grayling, Michigan Posts: 34	so is the essence of the opinion of this mod is ... if you flip your rr axle.... "C" notch the frame?? I dedeuce correctly???

05-20-2004, 01:23 AM	#7
TIMSPEED Join Date: Jan 2003 Location: Modesto, CA Posts: 1,321	Well, right now, I have a FULL 5" of distance between the top of the axle, and the frame, so I think if I do the WC Shackles, and put them in the bottom hole and get the 1" of drop or so, I'll be ok. I probably will end up notching it though... __________________ I have a few cars... See Them Here

05-20-2004, 08:28 AM	#8
crazy longhorn Fabricate till you "puke" Join Date: Jun 2002 Location: Ill Posts: 9,403	I have 2 1/2" tween the axle & rails on my longhorn. it hasnt caused any problems, but those old leaf springs were pretty stiff. i do agree with the rest of the guys tho, you need a minimum of about 3" for a civilized ride. crazyL __________________ 69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....

05-20-2004, 10:51 AM	#9
UltraDresser Registered User Join Date: Mar 2004 Location: Grayling, Michigan Posts: 34	is the 2" measurement with truck on load to ground? from bump stop to rail?



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