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Old 02-14-2004, 11:47 PM   #1
Stepsides 4Ever
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'73-'87 Crossmember In A '70?

Ok, I have a fair understanding of what fits what as far as converting my 1970 SWB Stepside to later model disc brakes, but will the crossmember from the '73 to '87 bolt up as easily as the '71-'72s do (slight modification to bolt holes), or is this a whole different animal? Sure seems like it would be easier to remove at the bone yard and disassemble it at home with my air tools, but I don't want to pay for the crossmember if I can't use it.
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Old 02-14-2004, 11:54 PM   #2
krue
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You just have to slot two holes in the frame.
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Old 02-15-2004, 12:04 AM   #3
Longhorn Man
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I thought the frame was wider in that area or something?
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Old 02-15-2004, 12:55 AM   #4
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Talking Bolts

right in except for the 2 bolts allready mentioned.The brake lines in front will need a little reworked.
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Old 02-15-2004, 01:09 AM   #5
Stepsides 4Ever
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Too cool!

Somewhat off-topic, but what about the power brake booster/master cylinder/proportional valve/pushrod/mounting bracket from the same years ('73-'87)? Will those pieces fit as well?

I've read that the power steering box (up to model year '81) is interchangeable...is there an easy way to identify which box is the variable ratio variety?

Someone should write up some sort of interchange guide if it hasn't been done already!
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Old 02-15-2004, 11:37 AM   #6
Longhorn Man
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Hot damn, I have been thinkng they didn't work.
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Old 02-16-2004, 02:19 PM   #7
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Quote:
Originally posted by Stepsides 4Ever
Too cool!



I've read that the power steering box (up to model year '81) is interchangeable...is there an easy way to identify which box is the variable ratio variety?

Someone should write up some sort of interchange guide if it hasn't been done already!
I beleive the only difference in the power steering box is that they went to Metric fittings with o ring seals, I got some adapters with my variable ratio box from Corvette Steering.
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