52" LLC question... help! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Storm Chaser · 04-13-2008, 05:55 PM

OK, I've been searching all over for the answer to this question, but I can't find it... The question concerns swapping to the 52" springs (using rear springs in the front). All the brackets are no problem, but what do you do at the axle? The longer leaf springs are 2-1/2 inches wide, where the springs coming out were 3 inches wide. Do you just mount it up with the plates from the original springs, even though there is a 1/2 inch difference (especially since you can't change the perch on the passenger side, being that it is cast into the housing).

What's the proper way to connect the front end to the 2-1/2 springs?

Storm Chaser · 04-14-2008, 07:39 PM

No one's done the long leaf conversion?

vern350 · 04-14-2008, 08:07 PM

maybe this will help? ..... http://www.coloradok5.com/52inchspringswap.shtml

Storm Chaser · 04-15-2008, 06:11 PM

Thanks for the link, it was real informative and a big help.

The only question it didn't answer is the one I am looking for- how do you bolt the axle, with it's perches designed for 3 inch springs, to a 2.5 inch spring? Do you just use the 3 inch hardware? Does the loss of .5 inch (or .25 on each side of the spring) hurt anything?

04-13-2008, 05:55 PM	#1
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	52" LLC question... help! OK, I've been searching all over for the answer to this question, but I can't find it... The question concerns swapping to the 52" springs (using rear springs in the front). All the brackets are no problem, but what do you do at the axle? The longer leaf springs are 2-1/2 inches wide, where the springs coming out were 3 inches wide. Do you just mount it up with the plates from the original springs, even though there is a 1/2 inch difference (especially since you can't change the perch on the passenger side, being that it is cast into the housing). What's the proper way to connect the front end to the 2-1/2 springs? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

04-14-2008, 07:39 PM	#2
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: 52" LLC question... help! No one's done the long leaf conversion? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

04-14-2008, 08:07 PM	#3
vern350 like a rock Join Date: Nov 2004 Location: Ontario, Canada Posts: 517	Re: 52" LLC question... help! maybe this will help? ..... http://www.coloradok5.com/52inchspringswap.shtml

04-15-2008, 06:11 PM	#4
Storm Chaser Registered User Join Date: Oct 2006 Location: In the Indiana Corn Posts: 449	Re: 52" LLC question... help! Thanks for the link, it was real informative and a big help. The only question it didn't answer is the one I am looking for- how do you bolt the axle, with it's perches designed for 3 inch springs, to a 2.5 inch spring? Do you just use the 3 inch hardware? Does the loss of .5 inch (or .25 on each side of the spring) hurt anything? __________________ 1988 R2500 Crew Cab Immediate plans- get it running! Future plans- Rear disc swap & Hydroboost Dually conversion with shackle flip-n-switch 4x4 conversion with 52" springs Maybe some new body panels Who needs a car when they make crew cab trucks?

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