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Old 05-15-2018, 01:44 AM   #1
tintintin
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Default '93 940 Front Brakes on an '85 740?

Confused after reading the Brickboard FAQ on brakes. I have access to a '93 940 that's going to the JY soon.

Can I swap the bigger brakes from the '93 940 to my '85 740? Presuming I need the calipers, rotors, hubs(?), possibly struts? Anybody done this? The Bendix front brakes on mine have always been problematical for me. Now they are vibrating again, after a somewhat recent caliper rebuild.
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Old 05-15-2018, 09:50 AM   #2
lverhagen
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I suggest swapping in the complete strut assemblies from the 940. Then you’ll get the later, arguably better hubs and newer brake setup all in one go. Brickboard details how you only use one set of the front brake hard lines for the newer calipers. You have to block off the unneeded ports in the master cylinder, but otherwise it’s pretty straight-forward.
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Old 05-15-2018, 12:48 PM   #3
DET17
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Originally Posted by lverhagen View Post
I suggest swapping in the complete strut assemblies from the 940. Then you’ll get the later, arguably better hubs and newer brake setup all in one go. Brickboard details how you only use one set of the front brake hard lines for the newer calipers. You have to block off the unneeded ports in the master cylinder, but otherwise it’s pretty straight-forward.
Agreed. Entire strut assy, ignore the ABS sensors, pray the hoses work. Perfect time for top strut bearings and perhaps BJ & tie Rod ends.
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Old 05-16-2018, 03:15 AM   #4
tintintin
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What about swapping the steering rack also?
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Old 05-17-2018, 04:14 PM   #5
lverhagen
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That will depend on what style rack is coming out and what style is going in. There were three styles and four brands (ZF, CAM, TRW, Kyoto) with power steering hose ends to match. If there isn’t anything wrong with your current rack, I would suggest leaving it.

If you’re set on swapping the racks too, just grab the power steering lines while you’re at it to ensure a straight-forward swap.
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Old 05-18-2018, 01:33 AM   #6
tintintin
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If there isn’t anything wrong with your current rack, I would suggest leaving it.
Agree, but it does leak at the input shaft, and it does something strange on curving freeway onramps, where minute corrections to the wheel feels like the assist cuts in and out. Actually, not cutting in and out, but going from normal assist to super extra assist. At first, I thought the front wheels were washing out, losing traction, that's what it feels like.

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If you’re set on swapping the racks too, just grab the power steering lines while you’re at it to ensure a straight-forward swap.
Good idea, thanks.
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