Author Topic: Getting spindle in place during disc conversion  (Read 1342 times)

Offline DadsCuda

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Getting spindle in place during disc conversion
« on: June 11, 2017 - 06:49:44 PM »
Still struggling with my disc conversion on my '67 a-body Cuda. Finally getting parts in but having trouble with the spndle. I replaced the bump stop making the UCA sit higher. In order to get the top of the spindle to meet up with the upper ball joint, I've tried using a jack to raise the LCA, per advice from friends. However, the noises I'm getting as the jack goes higher (creaking) and the little shifts of the jack as parts move are causing me some concern.
My question is should I loosen the adjuster bolt more (this car has torsion bars)? Would that make the jacking of the LCA less stiff? I've loosened them a lot but not to the point of the bracket being loose. Is this an otherwise good way to get the spindle hooked to the upper ball joint?
My pics are too big on my phone but can try to upload one from my computer if this is too confusing.




Offline HP2

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Re: Getting spindle in place during disc conversion
« Reply #1 on: June 11, 2017 - 09:34:14 PM »
You need to take the tension off the torsion bars and remove the bump stop under the upper arm to allow everything to droop enough to bolt together.

Offline DadsCuda

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Re: Getting spindle in place during disc conversion
« Reply #2 on: June 12, 2017 - 02:59:03 PM »
Won't it be tricky getting the bump stop back in?  :clueless:

Offline burdar

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Re: Getting spindle in place during disc conversion
« Reply #3 on: June 12, 2017 - 03:07:53 PM »
You'll have all kinds of room to install the bump stop once the car is on the ground and the UCA is higher. 

Are you doing anything with the ride height or are you leaving the ride height alone?  IF you are adjusting the ride height, you need to loosen the big nut on the LCA pivot pin.  The pin should be tightened when the car is on it's wheels AND the car is at the ride height you want.  You can't tighten that nut with the suspension hanging.

Offline DadsCuda

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Re: Getting spindle in place during disc conversion
« Reply #4 on: June 12, 2017 - 03:19:10 PM »
Ah! That's good to know! I had not planned on changing the ride height (mostly because I have no idea how it was originally, having never actually driven it). Removing the bump stop will help a lot, knowing it'll be easy enough to put back in once the car's on the ground!
So the adjuster bolt doesn't get tightened AT ALL until the tires are on the ground again? Is that correct?

Offline burdar

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Re: Getting spindle in place during disc conversion
« Reply #5 on: June 12, 2017 - 04:19:37 PM »
Only turn the bolt with the tires off the ground.  Set the car on the ground and measure the height.  If you need to adjust, jack the front off the ground and turn the bolts some more.  Lower the car and recheck.  Bounce the front end a few times before measuring.  If you are putting the height back where it was before you started, technically you don't have to mess with the LCA pivot pin but it might be a good idea anyway.  Back off the pivot pin nut and only tighten it back up once your ride height is set.  You will destroy the rubber LCA bushing otherwise.

Offline DadsCuda

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Re: Getting spindle in place during disc conversion
« Reply #6 on: June 14, 2017 - 09:43:09 AM »
Just a little update & thank you'd....the adjuster bolt needed to be loosened a lot more. Took that out & everything went in easy as pie!!
You guys are the best!!