Trailing arm lowering block - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chip46wis · 12-18-2007, 10:37 AM

I have a 69 stepside----trailing arm rear can I use rear lowering blocks on this?----It just doesnt seem like they would work----if so where can I get a set and how big can I go?---3in 4in?----confused here.
OR is it easier and safer to just go with lowering springs?
Thanx

Longhorn Man · 12-18-2007, 10:39 AM

moving to the 67-72 truck page

chip46wis · 12-18-2007, 10:58 AM

NP---thank you for the up.

jkaylor68gmc · 12-18-2007, 11:37 AM

My buddy and I are working on lowereing blocks for these. I would not recommend more than about three inches. Pm me with what you need. I may be able to help. They are very easy to do and much cheaper than springs.

*Shane* · 12-18-2007, 12:01 PM

Yes you can use lowering blocks on your truck. You will need the blocks and longer U bolts.

I would strongly not recommend anything over 2 inches.

LONGHAIR · 12-18-2007, 02:55 PM

For safety's sake, don't use a block that would let any part of the suspension hang below the edge of the wheel. This allows a solid metal suspension part to drag the ground in the event of a flat tire. Steering and braking both suffer. So, maximum block size is somewhat determined by wheel diameter....with-in reason. You start to get a leverage issue, much like lift blocks on 4x4s, when you get too thick...I wouldn't go more than 2"

CG · 12-18-2007, 05:06 PM

First off I agree totally with what LONGHAIR said. I do find it amusing though whenever this subject comes up, (and it does come up fairly often) everyone posts how dangerous it can be to let anything get below the scrubline. But no one says jack when a truck is posted where the whole thing can drag on the ground, they just go off on how great it is.

chip46wis · 12-18-2007, 05:14 PM

Excellent points well taken---THANK YOU-I will be running a 285 170 15 radial I think this should clear any problems---

pissonNOS · 12-18-2007, 07:34 PM

i ran a 2.5: inch block for about 2 years with out any huge problems but i did take into account the things these guys are telling you about the safety

EAST SIDE LOW LIFE · 12-18-2007, 10:17 PM

Yes you can and I do. I have 2' blocks in the back. They are also easy to make if you have the time.

esll...

I'm running 295 R50X15 in the rear. I used to run 305's but BFG/TA does not make these anymore. No problems with tire rubbing.

Tx Firefighter · 12-19-2007, 03:59 AM

http://67-72chevytrucks.com/vboard/s...d.php?t=196457

sneakysnake · 12-19-2007, 06:44 AM

http://www.stockcarproducts.com/trkarm1.htm

70rs/ss · 12-19-2007, 08:53 AM

Nice I just book marked that page!

suxtobu65 · 12-09-2012, 02:40 PM

With a 2'' lowering block, would shims be needed to maintain proper pinion angle?

**CC69Rat** · 12-09-2012, 07:31 PM

Quote:

Originally Posted by suxtobu65

With a 2'' lowering block, would shims be needed to maintain proper pinion angle?

Shound still be ok. .. but 1-2deg would take care of it if needed. I usually run 1 deg per inch of drop. IF you have a two piece driveshaft it might be a little less of an issue. (less jumprope / harmonic vibe vs. the longer one piece. ) Just my experience..

12-18-2007, 10:37 AM	#1
chip46wis Registered User Join Date: Dec 2004 Location: Central Wisconsin Posts: 1,317	Trailing arm lowering block I have a 69 stepside----trailing arm rear can I use rear lowering blocks on this?----It just doesnt seem like they would work----if so where can I get a set and how big can I go?---3in 4in?----confused here. OR is it easier and safer to just go with lowering springs? Thanx

12-18-2007, 10:39 AM	#2
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Re: Trailing arm lowering block moving to the 67-72 truck page

12-18-2007, 10:58 AM	#3
chip46wis Registered User Join Date: Dec 2004 Location: Central Wisconsin Posts: 1,317	Re: Trailing arm lowering block NP---thank you for the up.

12-18-2007, 11:37 AM	#4
jkaylor68gmc Senior Member Join Date: Dec 2005 Location: TN Posts: 2,448	Re: Trailing arm lowering block My buddy and I are working on lowereing blocks for these. I would not recommend more than about three inches. Pm me with what you need. I may be able to help. They are very easy to do and much cheaper than springs. __________________ 1947 International KB-1 1957 Chevy Bel-Air riding low 1962 swb fleetside 2002 Chevrolet Silverado 7-inch lift on 35 Daily driver 2016 Chevy Tahoe Better halves ride

12-18-2007, 12:01 PM	#5
Shane Account Suspended Join Date: Jun 2000 Location: over yonder Posts: 14,270	Re: Trailing arm lowering block Yes you can use lowering blocks on your truck. You will need the blocks and longer U bolts. I would strongly not recommend anything over 2 inches.

12-18-2007, 02:55 PM	#6
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Re: Trailing arm lowering block For safety's sake, don't use a block that would let any part of the suspension hang below the edge of the wheel. This allows a solid metal suspension part to drag the ground in the event of a flat tire. Steering and braking both suffer. So, maximum block size is somewhat determined by wheel diameter....with-in reason. You start to get a leverage issue, much like lift blocks on 4x4s, when you get too thick...I wouldn't go more than 2"

12-18-2007, 05:06 PM	#7
CG BlahBlahBlah Join Date: Feb 2002 Location: Wa. Posts: 20,046	Re: Trailing arm lowering block First off I agree totally with what LONGHAIR said. I do find it amusing though whenever this subject comes up, (and it does come up fairly often) everyone posts how dangerous it can be to let anything get below the scrubline. But no one says jack when a truck is posted where the whole thing can drag on the ground, they just go off on how great it is. Last edited by CG; 12-18-2007 at 05:07 PM.

12-18-2007, 05:14 PM	#8
chip46wis Registered User Join Date: Dec 2004 Location: Central Wisconsin Posts: 1,317	Re: Trailing arm lowering block Excellent points well taken---THANK YOU-I will be running a 285 170 15 radial I think this should clear any problems---

12-18-2007, 07:34 PM	#9
pissonNOS senior member Join Date: Feb 2003 Location: fort macleod alberta Posts: 2,770	Re: Trailing arm lowering block i ran a 2.5: inch block for about 2 years with out any huge problems but i did take into account the things these guys are telling you about the safety __________________ 69 GMC bagged

12-18-2007, 10:17 PM	#10
EAST SIDE LOW LIFE Senior Member Join Date: Mar 2007 Location: VANCOUVER ISLAND, B.C., Canada Posts: 1,602	Re: Trailing arm lowering block Yes you can and I do. I have 2' blocks in the back. They are also easy to make if you have the time. esll... I'm running 295 R50X15 in the rear. I used to run 305's but BFG/TA does not make these anymore. No problems with tire rubbing. __________________ Tomorrow is for doing today's stuff. ************************************* This truck has just the right amount of energy for me! Author: Warren Lake .... (member)

12-19-2007, 03:59 AM	#11
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	Re: Trailing arm lowering block http://67-72chevytrucks.com/vboard/s...d.php?t=196457 __________________ I'm on the Instagram- @Gearhead_Kevin

12-19-2007, 06:44 AM	#12
sneakysnake It's a catastrophic success. Join Date: Jan 2003 Location: Oklahoma Posts: 2,077	Re: Trailing arm lowering block http://www.stockcarproducts.com/trkarm1.htm

12-19-2007, 08:53 AM	#13
70rs/ss Registered User Join Date: Dec 2004 Location: Northern AZ Posts: 7,270	Re: Trailing arm lowering block Nice I just book marked that page!

12-09-2012, 02:40 PM	#14
suxtobu65 Registered User Join Date: Jul 2012 Location: Central Oklahoma Posts: 147	Re: Trailing arm lowering block With a 2'' lowering block, would shims be needed to maintain proper pinion angle?



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