Time for front suspension upgrade - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 6 (permalink) Old Aug 29th, 15, 2:59 PM Thread Starter
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Posts: 35
Time for front suspension upgrade

I have a 1968 Chevelle that is in bad need of an upgrade.
I have owned it sense 1990 and it has some mismatched front end parts.
I think it has stock front upper and lower control arms but the spindles were changed to
add disc drakes. When I went to change the front rotors I found that 68-72 did not match.
after looking through boxes of them I found 73 were a match. then I knew why things were
not quite right. I have drove it like this for years but only went for short rides to car shows.
I would like to start over and do it right.
I do run 15" skinny rims and tires on the front, I like the drag car look and it sees some time there.
How do I tell if the a arms are correct, calipers? I would say the spindles are wrong.
not looking for a corner cutter but would like it to drive like a modern car
I was also going to do the jeep steering box change.
Thinking about tubular arms and all if I replace them
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post #2 of 6 (permalink) Old Aug 29th, 15, 8:08 PM
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Re: Time for front suspension upgrade

If correct for 68 is important, check out RockAuto for replacement parts. I do believe the 68 had 4 piston calipers. 69 and up had single piston.

I like the UMI arms. I did the rear of my 69 with all UMI.

If I can find a really light weight set for the front, I will do that next (just straight line for me also} All the tubular front arms are actually heavier than the stockers. I understand they are much stronger, but I would like them to be very light for drag racing applications.

1969 Chevelle
412 small block
M-20 4spd
4:10 12 bolt
Sold, went to Sweden

1957 Thundarbird Gasser
Aluminum Shafiroff 582
Richmond 6spd
4:33 59 Olds rear
Dads old race car
He bought it in 1967

1967 Camaro
355 small block
M21 4spd
4:88 12 bolt spool
40yr old drag car
barn find in south PHX AZ
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post #3 of 6 (permalink) Old Aug 30th, 15, 8:03 PM Thread Starter
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Re: Time for front suspension upgrade

Not looking for period correct
I didn't know the tubular A arms were heaver
I know the 68 has 4 pistons, not worried about that either
just want it to drive better and work with my rim/tires

I do believe there are some "drag race only" ones that are light weight
But I do want to do more street driving

I may just order stock replacement spindles, hoping the other stuff is correct
but still will drive like a 68-72 car, still better then what I have
I do run 90/10 shocks and know it will never steer perfect
but I like the weight transfer I get from them
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post #4 of 6 (permalink) Old Sep 6th, 15, 3:15 PM Thread Starter
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Re: Time for front suspension upgrade

Those that have did the "Jeep upgrade Box" with all else stock
Does is now drive like a modern car?
not saying a Camaro, just like an up to date car-truck

just that mine has never been correct sense I owned it
I realize it's just a ratio change

just hope stock suspension with the "box" change doesn't leave me disappointed.
then will have to start over....

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post #5 of 6 (permalink) Old Sep 6th, 15, 7:03 PM
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Re: Time for front suspension upgrade

My 71 is mostly stock up front. Jeep box, SBC w/air springs, 1.125 sway bar, 90/10 shocks, poly bushings. Handles decent with a BBC and the Jeep box got rid of the vague steering feel the stock PS box had.
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post #6 of 6 (permalink) Old Sep 7th, 15, 12:02 AM
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Re: Time for front suspension upgrade

If you want to educate yourself on suspensions I would recommend you pick up the following book. A lot of good information in it.

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