gear ratio check - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-13-2007, 11:10 AM   #1
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Will a 4T60HD from a 96 Buick Ultra work in a 96 SSEi that has a 4T60HD?


I have Bill working on this as well


Thanks for your help
....Todd
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Old 12-13-2007, 11:14 AM   #2
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Look for RPO code:

Quote:
F79 - ratio, transaxle, final drive 2.97
On both cars. Yours will have it. If the donor car does also, and is a 96, I can't imagine it not being compatible. I suggest going to www.car-part.com and running a search for the DONOR car, and see if it returns transmissions from Bonnevilles in the search results.

For the record, 4T60 L67'* get 2.97, 65'* get 2.93.
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Old 12-13-2007, 11:19 AM   #3
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Will, where do I find this 'RPO code'?


Thanx....Todd
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Old 12-13-2007, 11:21 AM   #4
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Label on the spare tire cover under the carpet in the trunk.
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Old 12-13-2007, 11:23 AM   #5
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Thats where I have a problem...the guy I'm buying it from does not have that. He took it out for speaker box. And I don't think he has it anymore. I'll have to contact him and ask. Checking car-part right now. thanks.
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Old 12-13-2007, 11:26 AM   #6
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this is what I found
Quote:
1996
Transmission
Buick Park Ave. NEEDS WELDING AND PAN GASKET 74,000
--km--
119,163 A 042632 $995
--Can--
$995.00 Highway 4 Auto Salvage Can-BC(Coombs) Request_Quote 250-248-8916 Request_Insurance_Quote
1720
1996
Transmission
Pontiac Bonneville FWD, w/suprchrgr- 2883 $950 Off Again Auto USA-NM(Farmington) Request_Quote 1-505-325-5761 Request_Insurance_Quote 1153
1996
Transmission
Pontiac Bonneville 5-96,FWD,3.8L SC,AT,FL,SEI 88,803
--km--
143,000 A 6C7043 $900
--Can--
$900.00 Aldon Auto Salvage, Ltd. Can-AB(Lamont) E-mail 1-800-661-8814 1-780-895-2524 1279
1996
Transmission
Buick Park Ave. 5-96,3.8L,COL AT,640351 6F8302 $850
--Can--
$850.00 Maritime Auto Salvage, LTD Can-NS(Glenholme) E-mail 1-800-565-7278 1247
1996
Transmission
Buick Park Ave. FWD, w/suprchrgr-AT,3.8 0L1833 $800.77 Central City Auto Parts USA-OH(Columbus) Request_Quote 1-800-357-7969 Request_Insurance_Quote
402
1996
Transmission
Buick Park Ave. 4DR,CHP,3-96,FWD,EFI,3.8 REPAIR 1ST 47,000 A BO7316 $800
looks like the one I found will work.
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Old 12-13-2007, 11:26 AM   #7
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Does he have the VIN of the car it came out of? If so, you could have the dealership run the list of RPO codes associated with that VIN.
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Old 12-13-2007, 11:28 AM   #8
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Quote:
Originally Posted by vital49
Does he have the VIN of the car it came out of? If so, you could have the dealership run the list of RPO codes associated with that VIN.

never thought of that. Will do. thanks
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Old 12-13-2007, 11:28 AM   #9
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I just did too. Looks like the PA got all 3 common axle ratios we did, and the Ultra is indeed the same ratio, as well as compatible.

That website is notoriously accurate and dependable on cross-referencing compatible parts, and has Bville transmissions listed for compatible for an LSS, Ultra, and Bville.

FYI, my local price ranges are from $245 to $750, including one right here in town certified and warranteed for 90 days for $400.

Good luck!
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Old 12-13-2007, 11:29 AM   #10
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Quote:
1996
Transmission
Buick Park Ave. NEEDS WELDING AND PAN GASKET 74,000
--km--
119,163 A 042632 $995
Betcha ten bucks that sucker crapped a diff and launched it through the case, or cracked the output housing and they don't even know it.

You're good to go on that Ultra trans. What'* the price?
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