front end question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevyguy_72 · 12-05-2005, 02:09 PM

is there any difference in the front ends part from a 70 to a 72? (except the spindles and drums) I have the opportunity to get a free front end off of a truck(cut off in front of the cab). I was mainly wanting it so i could clean up the crossmember and a arms and get them powder coated or painted without having my whole truck torn apart. Then i would use my spindles and disc off my current truck.
Any info would be great
Thanks

chevyguy_72 · 12-05-2005, 05:17 PM

no one knows of the a-arms and crossmemeber are the same?

**john** · 12-05-2005, 05:50 PM

I remember something about losing some turning radius when using 71-72 spindles with the older lower a arms. John

Steelawork'n · 12-05-2005, 08:40 PM

I put a '71 under a '68. I changed everything out. I think the Upper and Lowers are the same. Everything else is different including tie rods and ball joints.

**dennislbrooks** · 12-05-2005, 08:49 PM

agree with Steelaworkin, most likely your 70 has 5/8" LH thread outer tie rods. The 71 and up will require an 11/16" RH thread outer tie rods. You have options to get around this. I run 72 spindles on my 67 and if I lost any turning radius, I have not noticed it.

crazy longhorn · 12-05-2005, 09:04 PM

Quote:

Originally Posted by chevyguy_72

no one knows of the a-arms and crossmemeber are the same?

the lower arms have a different steer stop on the drum vs disc fronts. Other than a little grinding on the stop on the spindle, it shouldnt be a problem. be aware . (as mentioned), that the tierods are different ,as well as the balljoint assys. from what I understand, the only things you are worried about are the crossmember & a arms.....no problem

on the crossmember itself , brakehose brackets will be a little different

L

71chevytruckguy · 12-05-2005, 09:09 PM

when i put dics up front on my '69, i took a complete front disc brake k-member from a '72 c-10 and swapped it out. the only thing that didn't line up was the front bolts holes on both side. all i had to do to fix this was to grind the hole in the frame out a little more to make them fit. i haven't had any porblems with it.

12-05-2005, 02:09 PM	#1
chevyguy_72 Vintage Evil Join Date: Aug 2005 Location: Broomfield, CO Posts: 956	front end question is there any difference in the front ends part from a 70 to a 72? (except the spindles and drums) I have the opportunity to get a free front end off of a truck(cut off in front of the cab). I was mainly wanting it so i could clean up the crossmember and a arms and get them powder coated or painted without having my whole truck torn apart. Then i would use my spindles and disc off my current truck. Any info would be great Thanks

12-05-2005, 05:17 PM	#2
chevyguy_72 Vintage Evil Join Date: Aug 2005 Location: Broomfield, CO Posts: 956	Re: front end question no one knows of the a-arms and crossmemeber are the same?

12-05-2005, 05:50 PM	#3
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	Re: front end question I remember something about losing some turning radius when using 71-72 spindles with the older lower a arms. John __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/

12-05-2005, 08:40 PM	#4
Steelawork'n Just hang'n around Join Date: Nov 2005 Location: Camano Island WA Posts: 248	Re: front end question I put a '71 under a '68. I changed everything out. I think the Upper and Lowers are the same. Everything else is different including tie rods and ball joints. __________________ Driving a '68 Chevy C20 and a '93 Astro Van. Lots and lots of mileage that I deduct each year.

12-05-2005, 08:49 PM	#5
dennislbrooks Senior Member Join Date: Feb 2004 Location: Williamsburg, Ohio Posts: 1,766	Re: front end question agree with Steelaworkin, most likely your 70 has 5/8" LH thread outer tie rods. The 71 and up will require an 11/16" RH thread outer tie rods. You have options to get around this. I run 72 spindles on my 67 and if I lost any turning radius, I have not noticed it.

12-05-2005, 09:09 PM	#7
71chevytruckguy Registered User Join Date: Jul 2005 Location: Kernersville, NC Posts: 599	Re: front end question when i put dics up front on my '69, i took a complete front disc brake k-member from a '72 c-10 and swapped it out. the only thing that didn't line up was the front bolts holes on both side. all i had to do to fix this was to grind the hole in the frame out a little more to make them fit. i haven't had any porblems with it. __________________ its a work in progess. 71 c-10 lwb, in the middle of frame off restoration. 69 c-10 swb, drag truck, 406 sbc, balanced, comp 292 cam, ported, polished, gasket matched, and bowl blended pro comp 210cc heads, 2.02/1.60 ferrea valves,1.6 roller rockers, re curved hei with msd 6al box, 2-step rev limter, accel 300+ wires, ported victor jr intake, holley 750 double pumper carb, dynomax 1 5/8 headers, 4 spd munci m-20 with super case and iron midplate, mr. gasket vertigate shifter, 5.38 pro gears with full spool, 33 spline moser axles and c-clip elimators, line-loc, 5 gal fuel cell, holley blue pump. 7.807 @ 88.37mph 1.60 60FT 80 g-20 van, tow rig, cammed 305, th350, 10 bolt 88 jeep wrangler, dd, 258, ax-15 swap, 4.5" lift, 33x12.50's, lockers, 3.55's



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