Please Help me with a 71 to 69 change over - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Cyclone44 · 09-13-2007, 12:54 PM

Hi Everyone, I have a couple of questions about my 69 C10 it's a longbed 3 on the tree 6 cyl. Last year I bought a 71 shortbed for parts, It had a very rusted out bondo filled body but it had a rebuilt factory disk brake frontend Somebody had heated and dropped the springs, So I pulled the whole frontend out cross member and all, And put it in my 69, I put the 69,s springs in the 71 frontend and it's about a 1 1/2 lower then it was with the original frontend can anybody tell me why? also I have the rearend from the 71 and it's a 3:08 and the 69 is a 3:73 and need it for pulling.. Can I just change the axels and brake drums to make it 5 lug all away around? Both trucks have coil spring rearends Thanks for any help. George

Cyclone44 · 09-14-2007, 10:58 AM

Back ttt

67ChevyRedneck · 09-14-2007, 11:23 AM

Are you using different tires then you had on the truck before?

Also, is it possible that in addition to the lowered springs the previous owner installed dropped spindles on the 71?

As far as the rear axles, they will be a different length. I think people have made it work, but I don't know how? Maybe use the tubes and axles from the 71 and swap the pumpkin from the 69? Again, I really don't know, just guessin.

**Palf70Step** · 09-14-2007, 12:49 PM

Could also be the simple factor is that the 69 springs are shot and weak.

As far as the rear axles go, Redneck had that covered. The 69 axles are each about 3/4" shorted than the 71 axles (toal of 1.5" in overall axle width). So if that is the origainl 69 axle, no it is nt a direct bolt in change. I personnally do not know the specifics on how to do it, but you could change the ring and pinion carrier from the 69 and put it in the 71 axle.

Cyclone44 · 09-14-2007, 01:05 PM

The truck has the same tires that it had, and it only took two days to do the job and it dropped at least 1 1/2 inches. I thought about the dropped spindles too so I checked them against my low miles 71 and they are the same...I'm not sure if the lower contol arms are different or not..maybe deeper? My scrap man hauled the part's off and I didn't think at the time to check that...They looked the same but I did not measure them. Thanks Guys, George

09-13-2007, 12:54 PM	#1
Cyclone44 Step Brother Join Date: Sep 2007 Location: K-town Posts: 4,029	Please Help me with a 71 to 69 change over Hi Everyone, I have a couple of questions about my 69 C10 it's a longbed 3 on the tree 6 cyl. Last year I bought a 71 shortbed for parts, It had a very rusted out bondo filled body but it had a rebuilt factory disk brake frontend Somebody had heated and dropped the springs, So I pulled the whole frontend out cross member and all, And put it in my 69, I put the 69,s springs in the 71 frontend and it's about a 1 1/2 lower then it was with the original frontend can anybody tell me why? also I have the rearend from the 71 and it's a 3:08 and the 69 is a 3:73 and need it for pulling.. Can I just change the axels and brake drums to make it 5 lug all away around? Both trucks have coil spring rearends Thanks for any help. George Last edited by Cyclone44; 09-13-2007 at 12:58 PM.

09-14-2007, 10:58 AM	#2
Cyclone44 Step Brother Join Date: Sep 2007 Location: K-town Posts: 4,029	Re: Please Help me with a 71 to 69 change over Back ttt

09-14-2007, 11:23 AM	#3
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	Re: Please Help me with a 71 to 69 change over Are you using different tires then you had on the truck before? Also, is it possible that in addition to the lowered springs the previous owner installed dropped spindles on the 71? As far as the rear axles, they will be a different length. I think people have made it work, but I don't know how? Maybe use the tubes and axles from the 71 and swap the pumpkin from the 69? Again, I really don't know, just guessin. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

09-14-2007, 12:49 PM	#4
Palf70Step State of Confusion! Join Date: Jul 2002 Location: Gulfport, MS USA Posts: 47,216	Re: Please Help me with a 71 to 69 change over Could also be the simple factor is that the 69 springs are shot and weak. As far as the rear axles go, Redneck had that covered. The 69 axles are each about 3/4" shorted than the 71 axles (toal of 1.5" in overall axle width). So if that is the origainl 69 axle, no it is nt a direct bolt in change. I personnally do not know the specifics on how to do it, but you could change the ring and pinion carrier from the 69 and put it in the 71 axle. __________________ Bill 1970 Chevy Custom/10 LWB Fleetside 2010 Toyota Tacoma PreRunner SR5 Double Cab - DD Member of Louisiana Classic Truck Club (LCTC) Bill's Gallery Life isn't tied with a bow, but it's still a gift. Live simply. Love generously. Care deeply. Speak kindly. Leave the rest to God!

09-14-2007, 01:05 PM	#5
Cyclone44 Step Brother Join Date: Sep 2007 Location: K-town Posts: 4,029	Re: Please Help me with a 71 to 69 change over The truck has the same tires that it had, and it only took two days to do the job and it dropped at least 1 1/2 inches. I thought about the dropped spindles too so I checked them against my low miles 71 and they are the same...I'm not sure if the lower contol arms are different or not..maybe deeper? My scrap man hauled the part's off and I didn't think at the time to check that...They looked the same but I did not measure them. Thanks Guys, George Last edited by Cyclone44; 09-14-2007 at 02:03 PM.

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