Can I use 72 C10 front suspension on a C20? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Fatherof3 · 04-08-2019, 09:50 PM

I have searched and seen lots on C20 to front 5 lug disc C10 conversions and they never say you can use 1971/2 C10 parts. I'm asking because a I have a 65 C20 and a 72 C10 donor. Thanks

**Captainfab** · 04-09-2019, 12:09 AM

On the '63-'66 C20's you will have to change the entire suspension including the crossmember with that from a '71-'87 C10. You do NOT have to use only '71-'72 parts. If that is what you already have, then by all means use it.

Fatherof3 · 04-09-2019, 10:01 AM

There are several posts that use the just the C10 LCA, spindle and tie rod to do this. But they never say to use 71 and 72 C10 parts. Is there a difference that would keep this from working?

**Chevy Fleetside** · 04-09-2019, 12:05 PM

Quote:

Originally Posted by Fatherof3

There are several posts that use the just the C10 LCA, spindle and tie rod to do this. But they never say to use 71 and 72 C10 parts. Is there a difference that would keep this from working?

You have to use the entire cross member. The lower control arms mount differently on the C20. You will need all of the steering components.

LostMy65 · 04-09-2019, 01:19 PM

Roll the old out, and roll the new in.
Do the whole crossmember and all.

**Captainfab** · 04-10-2019, 12:49 AM

The difference is that you are converting a '63-'66 C20 to a C10. A C10 lower ball joint will be too small for a '63-'66 C20 lower control arm, and on the '63-'66 C20's you can not just change the lower control arms for those from a C10. The '63-'66 C20's have a flat lower control arm shaft with no saddle which is necessary to hold a round C10 lower control arm shaft. That is why you have to change the entire crossmember. If you were starting with a C10, it would be simple and easy.

Quote:

Originally Posted by Fatherof3

There are several posts that use the just the C10 LCA, spindle and tie rod to do this. But they never say to use 71 and 72 C10 parts. Is there a difference that would keep this from working?

Fatherof3 · 04-10-2019, 12:03 PM

Thank you Captianfab!

This is exactly what I have been trying to understand

.

04-08-2019, 09:50 PM	#1
Fatherof3 Registered User Join Date: Nov 2013 Location: North Bend Wa Posts: 355	Can I use 72 C10 front suspension on a C20? I have searched and seen lots on C20 to front 5 lug disc C10 conversions and they never say you can use 1971/2 C10 parts. I'm asking because a I have a 65 C20 and a 72 C10 donor. Thanks Attached Images __________________ 65 C20 292 4spd 4:56 Eaton HO52

04-09-2019, 12:09 AM	#2
Captainfab 60-66 Nut Join Date: Mar 2007 Location: Coeur d'Alene, Idaho Posts: 23,252	Re: Can I use 72 C10 front suspension on a C20? On the '63-'66 C20's you will have to change the entire suspension including the crossmember with that from a '71-'87 C10. You do NOT have to use only '71-'72 parts. If that is what you already have, then by all means use it. __________________ Power Steering Box Adapter Plates For Sale HERE Power Brake Booster Adapter Brackets For Sale '63-'66 HERE and '67-'72 HERE and '60-'62 HERE and "60-'62 with clutch HERE Rear Disc Brake Brackets For Sale. Impala SS calipers HERE Camaro Calipers HERE D52 Calipers HERE 6 Lug HERE Hydroboost Mounting Plates HERE

04-09-2019, 10:01 AM	#3
Fatherof3 Registered User Join Date: Nov 2013 Location: North Bend Wa Posts: 355	Re: Can I use 72 C10 front suspension on a C20? There are several posts that use the just the C10 LCA, spindle and tie rod to do this. But they never say to use 71 and 72 C10 parts. Is there a difference that would keep this from working? __________________ 65 C20 292 4spd 4:56 Eaton HO52

04-09-2019, 01:19 PM	#5
LostMy65 But Found Her 25yrs Later! Join Date: Oct 2010 Location: Oregon City, Oregon Posts: 10,530	Re: Can I use 72 C10 front suspension on a C20? Roll the old out, and roll the new in. Do the whole crossmember and all. __________________ I lost my 65 - Found it 25 years later: http://67-72chevytrucks.com/vboard/s...d.php?t=426650 66 C20 Service Truck: http://67-72chevytrucks.com/vboard/s...d.php?t=428035

04-10-2019, 12:03 PM	#7
Fatherof3 Registered User Join Date: Nov 2013 Location: North Bend Wa Posts: 355	Re: Can I use 72 C10 front suspension on a C20? Thank you Captianfab! This is exactly what I have been trying to understand . __________________ 65 C20 292 4spd 4:56 Eaton HO52



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