skimobile

I just want to add a piece of info. on installing This Kartboy rear subframe lockdown bolt kit.
The installation instructions are already posted elsewhere on this forum so I won't re-hash the same information.
I did want to add however that the installation instructions say to spray PB Blaster into the rear subframe lockdown bolt's mounting holes, clean out the holes with a q-tip, etc.,... install the bolt only (without mounting grommet), working the bolt in and out of the mounting hole with some more PB blaster untill the bolt installs smoothly.
Do yourself a BIG favor at this point...get the proper tap for this installation and TAP the holes before installing your bolts. That way you make SURE the threads are nice and clean for your install.
While doing this procedure on my car, the corresponding threaded mounting nut that is tacked to the cars inner framing broke free while trying to thread the bolt in
In order to get to the nut, we had to cut a hole in the upper frame/skin in the rear trunk to get to the lower inner frame/skin where the nut broke free of its tack weld. Then we had to tack the nut back on and re-weld new piece of plate in the trunk.
It turned a 10 minute job into a 3 hour job
You might be OK with just some PB blaster and a Q-Tip but do you really want to take that chance?

 

SUBIESKI

Good tip, i kinda wondered if it would be easier to just grab a tap and run it through then use a q-tip. Now i know for sure lol

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StealthTL

So what is the 'proper' tap to use?

c0mpl3x

looks like m14x1.5 but i'm not sure without someone measuring it up as i don't have one in hand to measure

spend the extra $5 and get a BRAND NAME tap. doall, ymw, snapon, mac etc, a thread chasing tap is different from a bottom tap or a taper tap. thread chasing = for paint and junk removal, not rust and dirt/rocks

what's cheaper, 3 hours of labor with cutting welding and knuckle busting, or 7 minutes of thread chasing with a $12 tap?

mmiller2002

I have a set of these bolts, but, after some reading i have to question whether the body in that area is made to take the stress that the subframe will put on those two body nuts. As understand it, those threaded holes were used during manufacturing process.

northshore

Good info here:

http://www.subaruforester.org/vbulle...you-faq-32200/

I'm also curious why the Perrin's are shorter versus the Kartboy's

grafton

thanks for the heads up about the threads, i am installing a set while the suspension is this week

grafton

Sent an email to kartboy, the tap you'll need is 12x1.25

seanathan

man, i put in a set, and i never had a problem, i guess its cuz i live in texas and we have no snow, or salt on the roads

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