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 Post subject: Gear ratio to replace CV
PostPosted: Fri Jan 10, 2025 10:42 am 
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Location: Virginia
Year and Trim: 1995 Bonneville SE
Hello out there. I have been trying to figure out this rubbing sound when I turn left. It changes with the steering of the car and brakes. I have been told and looked for signs of the struts. Still a puzzle until recently. While driving at a certain rpm there is a growling like u-joints use to make when going bad. When I give it throttle or let off the throttle it will go away. Mainly accrues with a steady speed. So, I am going to figure it is the cv. Before I take it apart, I would order a new one. I need to find out the gear ratio, there are 2. A 2:84 and a 3:06. The tag on the driver door has overspray from when I had it painted. It is an SE. Would the SSE have a different ratio? What would be standard gears? I suspect I will have to get a number from the one on there. Any help on where to find the info would be appreciated.
White 1995 Bonniville SE
Douglas


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PostPosted: Fri Jan 10, 2025 11:34 am 
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Location: Browerville, MN
Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
The gear ratio can be found on the RPO sticker on the spare tire cover.

3.06 Gear Ratio (FW2)
2.84 Gear Ratio (F17)

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Or you can call any GM dealer with your VIN and ask them the gear ratio and they'll be able to look it up.

Or you can post your VIN or license plate here and I can look it up.

Most of the time SE's got the 2.84's and SSE's got the 3.05's...but not always.

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PostPosted: Fri Jan 10, 2025 2:29 pm 
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I might be wrong but since all the differentials were the same size in the 1995 4t60-e and hd, any FDR would work. The 4t65-e vs 4t65-hd is where the axle length comes into play.

Edit, I always thought the 3.06 in the 60 and 3.05 in the 65 was most common and independent of SSE vs SE vs SLE.

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Last edited by 95naSTA on Fri Jan 10, 2025 2:43 pm, edited 1 time in total.

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PostPosted: Fri Jan 10, 2025 2:32 pm 
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Year and Trim: 1995 Bonneville SE
1G2HX52K0S4255998
Thank You so much. I will check the spare tire cover.
I have spoken to you some time ago about your headlights. Not been able to find any BMW headlights anywhere, other than NEW....Too much $


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PostPosted: Fri Jan 10, 2025 2:45 pm 
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Location: Virginia
Year and Trim: 1995 Bonneville SE
Got it. FW2 Can get the right parts now. So, I am hoping this will help with the struts making noises.


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PostPosted: Fri Jan 10, 2025 2:50 pm 
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E39 lights are pretty common. Ebay or junk yards would have them. It took months for me to get them to work though.

Unless your front struts are blown, the noise is likely the strut mount bearing. They usually make a pop sound.

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Image
95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.


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PostPosted: Fri Jan 10, 2025 5:28 pm 
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Year and Trim: 2004 GXP - plus a handful of other Bonnevilles
95naSTA wrote:
I might be wrong but since all the differentials were the same size in the 1995 4t60-e and hd, any FDR would work. The 4t65-e vs 4t65-hd is where the axle length comes into play.

Edit, I always thought the 3.06 in the 60 and 3.05 in the 65 was most common and independent of SSE vs SE vs SLE.


That's what I thought too, but my parts look up shows different axles for different ratios.


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2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 57k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 110k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 270k | Official Bonneville Hauler
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PostPosted: Fri Jan 10, 2025 9:03 pm 
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Joined: Wed May 21, 2008 11:47 pm
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Year and Trim: 95 SLE
I've on the A32/Maxima platform where axles will have different p/ns but have no physical difference.

On my 95, it was originally a supercharged SLE that came with a 2.97 FDR 4t60-hd. 2.97 is achieved through a 3.33 Diff and 33/37 gears. I used the same axles with the 3.43 trans I built that had a 3.06 diff and 37/33 gears. I can't directly speak to the 2.84 diff but know the 3.33 and 3.06 diffs will interchange axles.

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95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.


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