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| View Poll Results: C6 vs 4 spd 78 bronco with a 400 | |||
| C6 |
   
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8 | 44.44% |
| 4 spd |
  
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10 | 55.56% |
| Voters: 18. You may not vote on this poll | |||
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11-25-2012, 12:20 AM
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#1 |
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Registered User
Join Date: Nov 2012
Location: Wisconsin
Posts: 11
iTrader: (0) Bronco Info: 1978 BRONCO xlt 400cI 4" lift 33" tires
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C6 to 4 spd swap
Currently have a 1978 bronco with a 400. have a c6 for the tranny and want to throw in a 4 spd i got from a 78 bronco parts truck. Wondering what i should look at or replace before i do the swap. replacement part brands would be nice
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11-25-2012, 12:45 AM
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#2 |
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FSM Lifetime
 
Join Date: Jan 2010
Location: Venice, FL
Posts: 2,685
iTrader: (1) Bronco Info: 1996 EB Bronco 5.8, E4OD, BW1356 Transfercase, 6 inch BDS Lift w/Procomp Leafs,172,000Miles
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This a dd or a weekend rig?
Dd than the c6. Weekend than maybe the 4 spd
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"hold my beer and watch this"  Hydroboost walkthrought My Build Thread!! II My Build Thread!! - retired |
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11-25-2012, 12:55 AM
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#3 | ||
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Junkyard Rat
Join Date: Oct 2012
Location: Oconomowoc, WI
Posts: 631
iTrader: (0) Bronco Info: '89 Bronco XLT. Front clip swap. 351 w/ C6. 4" lift. 33x10.5x15 BFG Mud Terrains
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I'd think it'd be the opposite. C6 gets pitiful mpg (yes yes we drive Broncos....but gas mileage is always a plus)
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11-25-2012, 01:07 AM
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#4 |
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Registered User
Join Date: Nov 2012
Location: Wisconsin
Posts: 11
iTrader: (0) Bronco Info: 1978 BRONCO xlt 400cI 4" lift 33" tires
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Its a daily driver but I dnt mind shifting gears. Plus tht low front gear wld be fun on the weekends. also hoping to raise my mpg up a little from 8. The truck seems to have a slow reaction to it. Thinking its the tranny I've spent hours messing with the distributor and carb with no luck
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11-25-2012, 09:09 AM
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#5 |
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FSM Lifetime
Join Date: Jan 2010
Location: Venice, FL
Posts: 2,685
iTrader: (1) Bronco Info: 1996 EB Bronco 5.8, E4OD, BW1356 Transfercase, 6 inch BDS Lift w/Procomp Leafs,172,000Miles
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Sounds like you already know your decision.
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"hold my beer and watch this" Hydroboost walkthrought My Build Thread!! II My Build Thread!! - retired |
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11-25-2012, 12:07 PM
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#7 |
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Registered User
Join Date: Aug 2008
Location: Mesa, AZ
Posts: 233
iTrader: (0) Bronco Info: 79 EFI460,T18,ORD Doubler,Lincoln locked Sterling rear, Coil sprung D60 front, 4" lift on 37s
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Do you have a complete donor vehicle to rob the stuff off or do you just have a transmission.
You will need the pedals, linkage, belcrank, bellhousing, release fork etc. As far as what to replace, I would replace the clutch friction disc, pressure plate, pilot bearing and throwout bearing. |
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11-25-2012, 07:05 PM
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#9 |
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Registered User
Join Date: Aug 2008
Location: Mesa, AZ
Posts: 233
iTrader: (0) Bronco Info: 79 EFI460,T18,ORD Doubler,Lincoln locked Sterling rear, Coil sprung D60 front, 4" lift on 37s
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The nylon bushings on the bellcrank are replaceable as are the felt washers, also the nylon bushings on the ends of the clutch linkage rod. I also drilled and installed a grease zerk fitting on the bellcrank. None of these things are critical but it will make the clutch action smoother.
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11-25-2012, 07:05 PM
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#10 |
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Registered User
Join Date: Jan 2011
Location: st-jean-de-matha, quebec
Posts: 146
iTrader: (0) Bronco Info: 1979 bronco,351m C6 np 205,
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I did the opposite on my '79.
I went from a 4 speed manual to a C6. I miss the super low first gear from time to time. I lost a bit on mileage as well, the C6 costs more in gas but I gained in ease of use...hit the gas and away you go. If you have a parts trucks, you can do the conversion You will have to take everything from the drive shaft on. everything will bolt on, the holes are already there in the floor for the clutch rod. marc |
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11-25-2012, 07:37 PM
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#11 |
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Registered User
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4spd better mpg and more fun
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96 f150 straight 6, d44 SAS, 4.56s, Aussie lockers, 35 inch mtrs. My build thread http://www.fullsizebronco.com/forum/...d.php?t=213623 |
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11-25-2012, 11:03 PM
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#13 |
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Fullsize Member
 
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My DD is a stick shift and I don't mind it till I get into traffic and I get tired of holding the clutch in or I have to stop on a hill and some ding dong is on my butt. My 79' has a C6 and I'm happy with the automatic, even nicer when I'm off road, just put it in 1st gear and away I go. Friends have manuals in their vehicles and hate all the shifting they have to do when we're out wheelin' around. I'll sacrifice the MPG for less dancing with 3 pedals.
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3G Alt. Upgrade, Duel Batteries, 351M bored .030 over with Edlebrock cam and intake, C-6 w/AO4D internals, 3" lift w/RS 9000, 33x12.50 MTR's, Saginaw PS Pump Conversion, On Board Air, Detroit Locker, Hydro Boost Brake System, Altimeter from a CH-46D, Map Light from a MH-53E. U. S. Government - Wasting paper and keeping Lumber Jacks gainfully employed since 1776. |
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11-26-2012, 12:39 AM
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#14 | |
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Fullsize Member
Join Date: May 2007
Location: Seattle, WA
Posts: 3,251
iTrader: (4) Bronco Info: 1990 EB FSB, MAF, 6.7L, E4OD, 4" Rancho, 4.56, 33" on 15x10 Alcoa's
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1990 Bronco, MAF, 408 Stroker, Level 10 E4OD, Currie F9+, Electric Boost Brakes, lots more... 
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12-02-2012, 04:21 PM
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#16 |
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Registered User
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i drove stick for years and there are times im glad my bronco is auto. wish i had a 4spd auto but like many admit c6 is one hell of a tranny. If you are just driving it like a sane man then get the heavy duty from a reputable company. If you need more then spend more. Only you will know how you will drive it.
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89 xlt, 351w, C6, 355 gears, F250 front coils. Duratrac 33x12.5x15. 3G upgrade. My first one  
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12-02-2012, 06:00 PM
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#17 | |
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Registered User
Join Date: Sep 2007
Location: Walker, LA
Posts: 3,705
iTrader: (0) Bronco Info: 79 Ranger XLT-460,NP435,NP205,stock axles/3.50's,2.5"RC lift,33"trxxs mt's,72 impala horn(best mod)
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Sent from my XT603 |
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