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03-31-2002, 10:32 PM
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#1 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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4 sp granny
I have 72 K5 350 granny 4 spd w/3.73 f/r diff. It could easily use a 5th gear.
Can granny be swapped with late model 5 sp? Any help appreciated. ...Dan ------------------ 72 K5 350 4 sp AC Pwr Stg MEM TN |
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04-01-2002, 12:13 AM
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#2 |
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Account Suspended
Join Date: May 2000
Location: IL
Posts: 0
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youll have issues with tranny length, splines and adaptor useage, advance adaptors is who to ask
------------------ Randy- Lincoln, IL randy@ccaonline.com -71/C-10(thx teeitup and crews!)350 4+4/CH465(thx 71Chev, GMCPaul, and CPNE)longfleet bed(thnx meathead95)!still building it- -'84 Z28 H.O. 305 L69 700R4 GT4 3.73 - 1984 Firebird SE 2.8L T-5 GT4 3.73 -1981 Cutlass Supreme, dunno what im gonna do with it yet... -79 G20 pass van, 350/th350/10bolt *Paint is overrated © RSS Enterprises 2000 |
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04-01-2002, 07:51 AM
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#3 |
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Senior Member
Join Date: Mar 2002
Location: Bartlett, TN
Posts: 348
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Thanks!
...Dan |
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04-01-2002, 10:29 PM
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#4 |
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Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,715
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Fast is right about Advance Adapters. You can swap in an NV4500, package price about $3000. Let's see, 30% fuel gain from 12 to 16 mpg or a $5 savings everytime you fill up, it'll take 600 fill ups to pay for it, and that's IF the 5 speed doesn't break... If you fill up once a week it would pay for itself in 10 years or so, but the SM465 granny 4 speed is more durable and reliable since power is delivered straight through in top gear, not through the countershaft like an OD trans. Mine has 350k+ miles on it without an overhaul and only one clutch. Admittedly it needs seals...but I'd just put 33" tires on it and be done with it. I have 35" tires on mine with 4.11 gears and it gets 15 mpg at ~65 mph give or take at 2400 rpm. You should be about 5% below that with the 33's.
------------------ 70 GMC 3/4 ton Sierra Grande 402/TH400 72 Jimmy 4WD 4spd 4" & 35's 64 Corvette Coupe 68 Camaro 'vert TPI & TH700 69 Z/28 355 12.6's @110 72 Datsun 240Z-ol' reliable
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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04-01-2002, 10:48 PM
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#5 |
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Registered User
Join Date: Apr 2001
Location: Las Vegas NV
Posts: 183
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You could put some 32" tires on for better highway performence
------------------ 70 burb 4/4 6^ 35BFGS 4on floor 70 blazer 350 3on tree needs tlc
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70 blazer 350 3on tree 98 GMC 3/4 ton 4x4 5 speed manual |
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04-02-2002, 01:49 PM
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#6 |
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Account Suspended
Join Date: May 2000
Location: IL
Posts: 0
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or 33...
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