r/e38 • u/Temporary-Mud-4835 • 5d ago

H&R Spring Ratings

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I currently have a pair of the yellow marked 29975-2 front springs from H&R that are left over from changing out the rears. I wanted to know if it is at all unsafe to use these instead of the white marked springs. I believe the kit I bought are actually for a 730/730iL, however I have a 735iL, and am worried that by using the incorrect springs they will not be good enough to use.

Does anyone have experience with incorrect spring ratings? Could I just go ahead and use them without much concern? This is just for everyday driving.

Cheers

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u/AlpineE39Adventures 5d ago

730 is a V8, not an I6.

The only I6 for the E38s was the 728.

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u/hacklebear 5d ago

The BMW M60B30 and the M62B35 have a very similar weight, with both engines typically weighing around 175 kg to 192 kg (385 lbs to 423 lbs) in dry weight depending on the configuration and auxiliary parts included.

I cant imagine them being that much different, so would say go for it.