|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: hemi71x]
#1207641
04/02/12 10:45 PM
04/02/12 10:45 PM
|
Joined: Dec 2003
Posts: 16,844
Phoenix - surface of the sun
nomore65BelvJim
I Live Here
|
I Live Here
Joined: Dec 2003
Posts: 16,844
Phoenix - surface of the sun
|
Quote:
Within the past few months, i have come across two 74 Plymouth Valiants that had 9 inch brakes on them.
In all rights, they should have been 10 inchers, but these cars appeared never to have been wrenched on in their lives.
I could believe it if they were very early production 74's, but not on a 76.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: JoeDragster]
#1207642
04/02/12 10:47 PM
04/02/12 10:47 PM
|
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
JohnRR
I Win
|
I Win
Joined: Jan 2003
Posts: 74,948
U.S.S.A.
|
Quote:
I appreciate the discussion....i looked real hard on both lca from the two spreads of years. both lca ball joint holes look the same and when i tried fitting a 73-76 ball joint stud, the ball joint fit down inside the hole on both the 68-72 and 73-76. From the array of control arms i tried, some were more worn than others and sat somewhat deeper on the tapered shaft than the others. But that appeared to be a wear issue on the lca and not the balljoint stud. Like some others, i assumed that the lca ball joint studs were larger on the 73-76 A bodies and from what i see from the parts i have, that is not the case.
The stud in the LCA is not a wear point once it is assembled , if it is worn then the LCA is damaged . It's a taper joint , once it is together and bolted tight there should be no movement between the 2 parts.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: JohnRR]
#1207643
04/02/12 11:36 PM
04/02/12 11:36 PM
|
Joined: Nov 2003
Posts: 12,494
Western Colorado High Desert
moparmarks
I Live Here
|
I Live Here
Joined: Nov 2003
Posts: 12,494
Western Colorado High Desert
|
Had a 75 Dart Sport /6 3-spd with 9" drums and SBC wheels. Had the small upper ball joints too.
My 74 FPM shows for V/L cars
UCA w/dics 3402702-3
UCA w/drums 3722460-1
72 Satellite Sebring Plus 440, 72 Dart 5.9 4-spd, 68 Valiant, 73 W200, 78 D100 sb, 78 D200, 98 DAKOTA, . Moparmarks Parts & Restorations Desert Mopar Metal Grand Jct. CO 970-261-7039 http://moparmark.com/motormangj@gmail.com
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: elmor]
#2937557
06/28/21 08:36 AM
06/28/21 08:36 AM
|
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon
enthusiast
|
enthusiast
Joined: Nov 2020
Posts: 348
Isle of Sheeps
|
Cool thread if nearly 'ten years old' lol... I'm a B-body kinda guy but want to invest in a 71 Duster. It was stripped out for a race car and the front suspension was 'sold off'. Then I find out about 'big and small' upper control arms and now the LCA debate as well...  So what to run on a drag-car? Cheap as chips 'drums' with no sway bar etc? Or invest in some later 73-76 tubular UCA's with disc spindles and 'who know's what' LCA's... 
Carpe diem, quam minimum credula postero, thanx Horace!
There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: elmor]
#2937657
06/28/21 01:18 PM
06/28/21 01:18 PM
|
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog
Striving for excellence
|
Striving for excellence
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
|
My 75 Dart Sport /6 904 had 9 inch drums and small bolt pattern. It was a real PITA to stop. <img src="/ubbthreads/images/graemlins/Twocents.gif" alt="" /> Years back, I argued that these cars existed. Some forum "experts" countered that all '73 and later A body cars had front disc brakes since the parts books didn't list drum brake parts. I've bought numerous parts cars over the years and have seen several 9 and 10" front drum Darts, Valiants and Dusters from 73-76. Those jerkoffs don't post here anymore.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: Gtxxjon]
#2937711
06/28/21 04:20 PM
06/28/21 04:20 PM
|
Joined: Jan 2003
Posts: 27,451
So Cal
autoxcuda
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,451
So Cal
|
Cool thread if nearly 'ten years old' lol... I'm a B-body kinda guy but want to invest in a 71 Duster. It was stripped out for a race car and the front suspension was 'sold off'. Then I find out about 'big and small' upper control arms and now the LCA debate as well... So what to run on a drag-car? Cheap as chips 'drums' with no sway bar etc? Or invest in some later 73-76 tubular UCA's with disc spindles and 'who know's what' LCA's... Do you want large bolt pattern (4.5” on 5) or small (4” on 5) ? Do you want disks or drums?
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: Gtxxjon]
#2937716
06/28/21 04:35 PM
06/28/21 04:35 PM
|
Joined: Jan 2003
Posts: 30,989
Oregon
AndyF
I Win
|
I Win
Joined: Jan 2003
Posts: 30,989
Oregon
|
Cool thread if nearly 'ten years old' lol... I'm a B-body kinda guy but want to invest in a 71 Duster. It was stripped out for a race car and the front suspension was 'sold off'. Then I find out about 'big and small' upper control arms and now the LCA debate as well... So what to run on a drag-car? Cheap as chips 'drums' with no sway bar etc? Or invest in some later 73-76 tubular UCA's with disc spindles and 'who know's what' LCA's... If it is a drag car then put struts on it and get rid of all the heavy stock stuff. You'll save a ton of weight and free up a bunch of room for the headers.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: AndyF]
#2937878
06/29/21 05:22 AM
06/29/21 05:22 AM
|
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon
enthusiast
|
enthusiast
Joined: Nov 2020
Posts: 348
Isle of Sheeps
|
Many thanx for the quick replies.
Well done you Guys with 25,000 posts and above!!!
I was an A-body guy back in the 80's and then again some twenty year later.
Never liked the 4 inch pcd and all the probs of finding wheels, even now lol.
I assume the 73 up A-bods went to the 70-74 E-body disc spindles.
Always use them for my B-bods, as the earlier 4 pot Kelseys hayes stuff, is a MARE!
Removal of the torsion bars is a bonus, so a strut system would be a BIG advantage indeed!
It reminds me of my English Fords and American Fords too.
I remember watching 'U-tube-Tony' in a Junkyard with some early Thunderbirds and saying ''Dumbass strut system'...
I think I saw your Cuda 'autoX' once at the Spring Fling' (many moons ago) on one of my many trips to LA to meet Peter Jenslund and Julius.
Last edited by Gtxxjon; 06/29/21 05:25 AM.
Carpe diem, quam minimum credula postero, thanx Horace!
There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: Gtxxjon]
#2937960
06/29/21 11:44 AM
06/29/21 11:44 AM
|
Joined: Jan 2003
Posts: 27,451
So Cal
autoxcuda
Too Many Posts
|
Too Many Posts
Joined: Jan 2003
Posts: 27,451
So Cal
|
Many thanx for the quick replies.
Well done you Guys with 25,000 posts and above!!!
I was an A-body guy back in the 80's and then again some twenty year later.
Never liked the 4 inch pcd and all the probs of finding wheels, even now lol.
I assume the 73 up A-bods went to the 70-74 E-body disc spindles.
Always use them for my B-bods, as the earlier 4 pot Kelseys hayes stuff, is a MARE!
Removal of the torsion bars is a bonus, so a strut system would be a BIG advantage indeed!
It reminds me of my English Fords and American Fords too.
I remember watching 'U-tube-Tony' in a Junkyard with some early Thunderbirds and saying ''Dumbass strut system'...
I think I saw your Cuda 'autoX' once at the Spring Fling' (many moons ago) on one of my many trips to LA to meet Peter Jenslund and Julius. Always hanging out at Julius’s old shop. Saw Peter last month at a Mopar show. My cuda still looks the same.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: Gtxxjon]
#2938168
06/29/21 08:45 PM
06/29/21 08:45 PM
|
Joined: Jan 2004
Posts: 8,233
fredericksburg,va
cudaman1969
master
|
master
Joined: Jan 2004
Posts: 8,233
fredericksburg,va
|
Cool thread if nearly 'ten years old' lol... I'm a B-body kinda guy but want to invest in a 71 Duster. It was stripped out for a race car and the front suspension was 'sold off'. Then I find out about 'big and small' upper control arms and now the LCA debate as well... So what to run on a drag-car? Cheap as chips 'drums' with no sway bar etc? Or invest in some later 73-76 tubular UCA's with disc spindles and 'who know's what' LCA's... How quick do you want the car to go and how much money you got. Fun bracket car stock will work fine 7 second car will need cage and GOOD suspension, of course low 8 second 68 Hemi Cudas are on stock front end also. So many ways.
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: cudaman1969]
#2938249
06/30/21 04:34 AM
06/30/21 04:34 AM
|
Joined: Nov 2020
Posts: 348
Isle of Sheeps
Gtxxjon
enthusiast
|
enthusiast
Joined: Nov 2020
Posts: 348
Isle of Sheeps
|
Was running mid tens in a street legal Dart with a 440, so want to go 'one step further' possibly?
(ps don't have any money, just a garage full of Moparts lol)
Can't see the front suspenders on the 'S and M' Duster, but assume its stockish?
Last edited by Gtxxjon; 06/30/21 04:38 AM.
Carpe diem, quam minimum credula postero, thanx Horace!
There’s no point trying to fix stuff that ain’t broke,,, 'but if ain’t broke',,, you is not trying hard enough...
|
|
|
Re: Difference between 68-72 and 73-76 lower control arms
[Re: hemi71x]
#2938402
06/30/21 03:32 PM
06/30/21 03:32 PM
|
Joined: Jan 2003
Posts: 28,596
Shopping @ HoBo Fright
340SIX
Doc Flappergas's Evil Twin
|
Doc Flappergas's Evil Twin
Joined: Jan 2003
Posts: 28,596
Shopping @ HoBo Fright
|
I'm almost sure the lower control arm are dfferent from 1973 to 1976 and the arlier ones, the hole for the lower ball joint stud is different. [/quote] That is not true. You are misinformed about that, for some reason or another. Ball joint stud hole diameters are all the same throughout all the years. Nothing at all changed in the LCA's. [/quote] I agree as I pulled a good bit of uppers to get older disk brakes a a ton of 1973 up. It is the uppers that are diff.
|
|
|
|
|
