69 c/20 rear axle set up - The 1947 - Present Chevrolet & GMC Truck Message Board Network

recboy300 · 11-18-2013, 10:52 PM

hello i am new to the site and like all the great info thats hear. that being said can anyone give me a direction togo i have a 69 c/20 and the rear diff is a coil under set up how would i go about putting leaf springs on it and a newer axle.i am only thinking about this because i cant find 3.73 gears or lower for the one i have. i think it has 4.56 now but not good for highway use. any help is greatly welcome thx

**lolife99** · 11-20-2013, 08:13 PM

I think I would keep the coils and just add axle saddles to the newer rearend.
The ride will be much better.
You might have to add a new track bar,... like a Super Track bar from ECE.

recboy300 · 11-20-2013, 10:48 PM

oh i didn't know that i could do that awsome thx. where is a good place to look for something like that?

**kwmech** · 11-21-2013, 08:44 PM

If you are good with a torch or know somebody that is, you can use the ones off the axle in the truck. Take measurements first

Mike C · 11-23-2013, 11:11 AM

4.10 is the tallest gear you can get for an Eaton rear. If you can find a coil sprung Dana 60 then you can get 3.54. Not near as common as the Eaton in coil spring however, but they are out there.

**lolife99** · 11-23-2013, 12:47 PM

Quote:

Originally Posted by recboy300

oh i didn't know that i could do that awsome thx. where is a good place to look for something like that?

Early Classic Enterprises= ECE.
www.earlyclassic.com
They have new axle saddles and a Super Track Bar to center your late model rearend.

recboy300 · 11-26-2013, 07:39 AM

AWSOME thx for the info. While I'm working on the rear dose anyone know. if I put a drop spindle in the front can I use the coils or do I have to put air bags in ??

recboy300 · 11-26-2013, 07:40 AM

And are 1/2 ton spindles the same as 3/4 ton spindles ??

**lolife99** · 11-26-2013, 08:36 AM

Quote:

Originally Posted by recboy300

AWSOME thx for the info. While I'm working on the rear dose anyone know. if I put a drop spindle in the front can I use the coils or do I have to put air bags in ??

Yes you can use coil springs.

Quote:

Originally Posted by recboy300

And are 1/2 ton spindles the same as 3/4 ton spindles ??

No.
They are different.
Different upper and lower balljoints, different outer tie rods and different lower a-arms.

recboy300 · 11-29-2013, 11:37 PM

Thx for all the info Keith. I got a hold of ece and they are AWSOME people. You wouldn't know if I have to keep my two piece drive shaft or should I try to switch it over to a one piece when I redo the drive train set up ??

11-18-2013, 10:52 PM	#1
recboy300 Registered User Join Date: Oct 2013 Location: MI Posts: 9	69 c/20 rear axle set up hello i am new to the site and like all the great info thats hear. that being said can anyone give me a direction togo i have a 69 c/20 and the rear diff is a coil under set up how would i go about putting leaf springs on it and a newer axle.i am only thinking about this because i cant find 3.73 gears or lower for the one i have. i think it has 4.56 now but not good for highway use. any help is greatly welcome thx

11-20-2013, 08:13 PM	#2
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,686	Re: 69 c/20 rear axle set up I think I would keep the coils and just add axle saddles to the newer rearend. The ride will be much better. You might have to add a new track bar,... like a Super Track bar from ECE. __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

11-20-2013, 10:48 PM	#3
recboy300 Registered User Join Date: Oct 2013 Location: MI Posts: 9	Re: 69 c/20 rear axle set up oh i didn't know that i could do that awsome thx. where is a good place to look for something like that?

11-21-2013, 08:44 PM	#4
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,407	Re: 69 c/20 rear axle set up If you are good with a torch or know somebody that is, you can use the ones off the axle in the truck. Take measurements first

11-23-2013, 11:11 AM	#5
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: 69 c/20 rear axle set up 4.10 is the tallest gear you can get for an Eaton rear. If you can find a coil sprung Dana 60 then you can get 3.54. Not near as common as the Eaton in coil spring however, but they are out there. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

11-26-2013, 07:39 AM	#7
recboy300 Registered User Join Date: Oct 2013 Location: MI Posts: 9	Re: 69 c/20 rear axle set up AWSOME thx for the info. While I'm working on the rear dose anyone know. if I put a drop spindle in the front can I use the coils or do I have to put air bags in ??

11-26-2013, 07:40 AM	#8
recboy300 Registered User Join Date: Oct 2013 Location: MI Posts: 9	Re: 69 c/20 rear axle set up And are 1/2 ton spindles the same as 3/4 ton spindles ??

11-29-2013, 11:37 PM	#10
recboy300 Registered User Join Date: Oct 2013 Location: MI Posts: 9	Re: 69 c/20 rear axle set up Thx for all the info Keith. I got a hold of ece and they are AWSOME people. You wouldn't know if I have to keep my two piece drive shaft or should I try to switch it over to a one piece when I redo the drive train set up ??



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