V160 Companion Flange Bolts - Lexus IS Forum
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post #1 of 4 (permalink) Old 04-09-2015, 04:58 PM Thread Starter
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V160 Companion Flange Bolts

I wasn't really sure where to post this but I figured most that have the V160 trans are probably boosted or looking to "Go Faster"

I bought a used V160 like many of us do and I'm rebuilding it myself. It needed a new intermediate case and bellhousing.

Anyway here's my question, The companion flange is supposed to have pressed in studs or bolts and mine didn't come with any. I'm sure that I'm not the only one that has had this issue. Those of you that were in the same scenario what kind of bolts did you use to bolt the companion flange to the drive shaft? I'm afraid that if they aren't pressed in there is the possibility of them vibrating loose (supposedly that's what happened to the previous owner).

Should I just buy a new companion flange that has the studs already in it? I know you can't buy the studs separately from the flange as I've already talked to Curt at Elmhurst about this.

Thanks in advance,

Jay

It's got the heart of a "Silver Monster".

410whp on a mustang dyno @ Big3 in OH tuned by, Me.
:(
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post #2 of 4 (permalink) Old 04-11-2015, 08:42 AM Thread Starter
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Sorry, I meant to post this in the Gen 1 IS300 Go Faster section

It's got the heart of a "Silver Monster".

410whp on a mustang dyno @ Big3 in OH tuned by, Me.
:(
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post #3 of 4 (permalink) Old 10-21-2015, 05:18 AM
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There are 11mm and you will not be able to find them without purchasing the flange.

I went to NaPa Auto parts and looked through their bolts catalogue and found a standard size with non-threaded part to press into the flange. They were too long though so I put the nut on and cut to the correct length, backed the nut off and they were perfect!

Good Luck
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post #4 of 4 (permalink) Old 10-21-2015, 10:52 AM
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There is a similar discussion somewhere in the gen 1 side.

Those bolts are factory pressed in and then the unit appears to be balanced with a couple of holes drilled like they do on flywheels. I don't have a picture of my flange, but example of what I'm talking about on a flywheel below. It's likely not enough of a change for harmful vibration, but I decided to go for a new factory flange to reduce any vibration. 170 mph in a MK4 back in the day when the shop I was at was racing, you could pretty much balance a dime on the shifter.

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