rear shock bolts
04-15-2010, 02:34 PM
#1
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Location: Lebanon, PA
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rear shock bolts
I recently removed my rear shocks to adjust them, and found out the bolts needed to be replaced. The threads were worn. Porsche does not supply them any longer, and I could not find any at the usual Porsche supply places. After doing some research on the net, BMW part number 07-11-9-914-829 can be used. Both bolts are M14x1.5x85. The only difference is the Porsche bolt is a grade 8.8 while the BMW part is 10.9. Hopefully this can help someone out.
04-15-2010, 05:20 PM
#2
available from dcauto...
http://dcauto.gotdns.com:4000/illust...ndex/824451214
Grade___________Proof Load (psi)________Yield StrengthvMin (psi)_______Tensile StrengthMin (psi)
8.8_______________85,000________________92,000________________________12 0,000
10.9______________120,000______________130,000________________________15 0,000
http://dcauto.gotdns.com:4000/illust...ndex/824451214
Grade___________Proof Load (psi)________Yield StrengthvMin (psi)_______Tensile StrengthMin (psi)
8.8_______________85,000________________92,000________________________12 0,000
10.9______________120,000______________130,000________________________15 0,000
04-15-2010, 06:05 PM
#6
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Sam, I ran for years with the stock bolt and the Bilstein Escort coil overs. I had no problems, except the rubber shock bushings deformed over time. Eventually I went with spherical bushings and had to go with the Racer's Edge 1/2" conversion.
04-15-2010, 06:17 PM
#7
Drifting
I've been running a set of 10.9 bolts w/ my coilovers w/ no problems after 4 years. The stock bolts were too short to adequately space the Moton away from the arm, so I bought some longer generic black oxide bolts and cut some additional threads into them. I spin them w/ an impact after every few races looking for wobble and so far, so good.
Of course, I bought ~10 of them thinking I'd need spares....
Of course, I bought ~10 of them thinking I'd need spares....
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04-15-2010, 06:40 PM
#8
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same here, and I wasn't racing.
04-15-2010, 10:20 PM
#9
Race Director
Nope, stock escort coilovers on the stock bolts...going on 3 years now I think - havent got around to pulling the rears and having them sent to Bilstein to be modified for spherical bushings yet.
Yup, mine are a bit deformed, not too bad. They dont have many miles on them, Im still planning on having them changed over, maybe next winter.
Yup, mine are a bit deformed, not too bad. They dont have many miles on them, Im still planning on having them changed over, maybe next winter.
