DJM 3" Lower Control Arms - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Wild83C10 · 04-02-2006, 04:54 PM

Soon I will be lowering my truck more then it currently is. I purchased a set of DJM lower control arms and I am thinking they may sit very close to the ground. I currently have 2" lowering spindles and I cut my springs about an inch. Any one have them installed? Any issues with ground clearance? Any pictures? Thanks
Joe

**Captkaos** · 04-03-2006, 07:04 PM

Are you going to be using the spindles AND the LCA's together? I woudn't recommend that.

Wild83C10 · 04-03-2006, 07:20 PM

I was planning on it. What problems would I run into? I am looking for about a 5 inch drop in the front. What would be the best combo for that?

dwcsr · 04-03-2006, 07:25 PM

I did the same thing and the A arms drag the ground. You would have to run 20's on the front to keep it from dragging.

Wild83C10 · 04-03-2006, 07:51 PM

So dwcsr, you have lowering lower control arms and drop spindles and that resulted in ground clearance issues? I am running 17s and I don't really want to go any bigger than that.

dwcsr · 04-04-2006, 01:57 AM

Quote:

Originally Posted by Wild83C10

So dwcsr, you have lowering lower control arms and drop spindles and that resulted in ground clearance issues? I am running 17s and I don't really want to go any bigger than that.

I got the 2.5 drop spindles and the 3" drop A arms on 15" 29.5 tall tire and the A arms were about a 1/2" off the ground in the garage.

Wild83C10 · 04-03-2006, 09:38 PM

Well I did some more research and it appears that if I want to lower my truck 5 " in the front and use the 3" lower control arms I should use the stock spindles with some lowering springs. That is what DJM has as one of there kits. Thanks for the heads up.

**Captkaos** · 04-03-2006, 11:25 PM

Using those components together violates Scrub. Another words, you get a flat and you loose control since the control arms hang below the rim.
Spindles and LCA's are not designed to be used together. You need a 3" drop spring, or 3" spindles and 2" springs.

dwcsr · 04-04-2006, 01:59 AM

Quote:

Originally Posted by Captkaos

Using those components together violates Scrub. Another words, you get a flat and you loose control since the control arms hang below the rim.
Spindles and LCA's are not designed to be used together. You need a 3" drop spring, or 3" spindles and 2" springs.

I'd have to agree. But must admit I have no idea what a scrub violation is.

boxrodz · 04-04-2006, 02:20 AM

Quote:

Originally Posted by dwcsr

I'd have to agree. But must admit I have no idea what a scrub violation is.

Basically, a violation is when any frame or suspension part hangs lower than the scrub line of a vehicle. The scrub line is defined as lower part of the rim (i.e. if a vehicle was to rest on its' rims (without tires), no part of the suspension or frame should contact the ground.) It's good practice to set your suspension maintain the scrub line.

Like Chris said, using both dropped spindles and dropped arms are not recommended. (I don't even think 20s couldn't give you enough of a scrub line with the dropped spindle/arm combo.)

**Captkaos** · 04-05-2006, 06:00 PM

Quote:

Originally Posted by boxrodz

Basically, a violation is when any frame or suspension part hangs lower than the scrub line of a vehicle. The scrub line is defined as lower part of the rim (i.e. if a vehicle was to rest on its' rims (without tires), no part of the suspension or frame should contact the ground.) It's good practice to set your suspension maintain the scrub line.

Thank you sir! Excellent description. I guess I was a little vague...

Quote:

Originally Posted by chevyfan420

not trying to hijak, but would just the 3" LCA be ok with 15's?

It would be fine.

chevyfan420 · 04-05-2006, 05:38 PM

not trying to hijak, but would just the 3" LCA be ok with 15's?

04-02-2006, 04:54 PM	#1
Wild83C10 Registered User Join Date: May 2002 Location: NJ Posts: 910	DJM 3" Lower Control Arms Soon I will be lowering my truck more then it currently is. I purchased a set of DJM lower control arms and I am thinking they may sit very close to the ground. I currently have 2" lowering spindles and I cut my springs about an inch. Any one have them installed? Any issues with ground clearance? Any pictures? Thanks Joe __________________ 83 C10 Stepside (SOLD, it was a blast!) 383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt S475 and C4 DM running, fine tuning turbo= Douchebag Racing: Runs Fine all the Time

04-03-2006, 07:04 PM	#2
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: DJM 3" Lower Control Arms Are you going to be using the spindles AND the LCA's together? I woudn't recommend that. __________________ 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

04-03-2006, 07:20 PM	#3
Wild83C10 Registered User Join Date: May 2002 Location: NJ Posts: 910	Re: DJM 3" Lower Control Arms I was planning on it. What problems would I run into? I am looking for about a 5 inch drop in the front. What would be the best combo for that? __________________ 83 C10 Stepside (SOLD, it was a blast!) 383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt S475 and C4 DM running, fine tuning turbo= Douchebag Racing: Runs Fine all the Time

04-03-2006, 07:25 PM	#4
dwcsr Hollister Road Co. Join Date: Apr 2005 Location: Houston Posts: 6,131	Re: DJM 3" Lower Control Arms I did the same thing and the A arms drag the ground. You would have to run 20's on the front to keep it from dragging.

04-03-2006, 07:51 PM	#5
Wild83C10 Registered User Join Date: May 2002 Location: NJ Posts: 910	Re: DJM 3" Lower Control Arms So dwcsr, you have lowering lower control arms and drop spindles and that resulted in ground clearance issues? I am running 17s and I don't really want to go any bigger than that. __________________ 83 C10 Stepside (SOLD, it was a blast!) 383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt S475 and C4 DM running, fine tuning turbo= Douchebag Racing: Runs Fine all the Time

04-03-2006, 09:38 PM	#7
Wild83C10 Registered User Join Date: May 2002 Location: NJ Posts: 910	Re: DJM 3" Lower Control Arms Well I did some more research and it appears that if I want to lower my truck 5 " in the front and use the 3" lower control arms I should use the stock spindles with some lowering springs. That is what DJM has as one of there kits. Thanks for the heads up. __________________ 83 C10 Stepside (SOLD, it was a blast!) 383 MASS-FLO EFI/TKO II 600/3.90 Posi 10 bolt S475 and C4 DM running, fine tuning turbo= Douchebag Racing: Runs Fine all the Time

04-03-2006, 11:25 PM	#8
Captkaos www.73-87chevytrucks.com Join Date: Dec 1999 Location: Birmingham, AL Posts: 6,935	Re: DJM 3" Lower Control Arms Using those components together violates Scrub. Another words, you get a flat and you loose control since the control arms hang below the rim. Spindles and LCA's are not designed to be used together. You need a 3" drop spring, or 3" spindles and 2" springs. __________________ 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

04-05-2006, 05:38 PM	#12
chevyfan420 Registered User Join Date: Nov 2003 Location: Ancaster, Ontario, Canada eh Posts: 95	Re: DJM 3" Lower Control Arms not trying to hijak, but would just the 3" LCA be ok with 15's? __________________ 80 Chevy K10 350/350turbo 86 Chevy 1/2 ton shorty project truck 79 Chevy 1/2ton 350/350turbo not much to look at... *Retired* 97 Chevy C1500 4.3/5 speed.....daily driver

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