|
 |
|
|
|
02-01-2006, 09:20 PM
|
#1 | |
|
Registered User
Join Date: Dec 2005
Location: Miller Place, Long Island NY
Posts: 55
|
Dana 30 Gear Ratio
I have a 1979 Dana 30 front axle. What was the the gear ratio on this? 3.54? I'm swapping in a ford 9" rear and want to match them up. If I went with 3.71's in front and rear, are they going to scream going down the highway?
__________________
CJ7 1979 4.3l 1997 vortec V6, Endelbrock 4 barrel carberator and intake manifold, Flo Core waterpump, powermaster alternator, Mallory distributor and fuel pump, headman headers, flowmaster dual mufflers T18A tranny, Dana 20 T-case, 15 Mickey Thompson Rims, 33 by 12.5 Super Swampers, Warn Premium Locking hubs, Rancho 9000 shocks, 4" suspension 3" body lift by Skyjacker, Autometer Z gauges, smittybuilt front and rear bumpers, Tom Woods CV joint rear driveshaft. [url]www.danhenk.com[/url] |
|
|
|
|
|
|
02-01-2006, 09:57 PM
|
#2 |
|
Registered User
|
The stock Dana 30 can only go down to 3.54s unless you replace the carrier IIRC... so its definitely not lower than that
 Should be a tag on the front with a code or even the ratio on it...
__________________
1982 CJ7
Iron Duke "Hurricane" 151 CID 2.5L 4-Cyl T177 Tranny | Dana 300 T-Case Dana 30 Front | AMC 20 Rear |
|
|
|
|
02-02-2006, 12:21 AM
|
#3 |
|
Registered User
|
Dana 30 - same carrier 2.73 - 4.10
Model 20 has a carrier break.
__________________
- Jeff '83 cj Another 7 by "CJ's Heaven" |
|
|
|
|
02-02-2006, 10:38 AM
|
#4 |
|
GROUND POUNDER
 
1980 CJ5
|
... and no, it won't scream going from 3.54s to 3.70s...
__________________
'80 CJ5 w/AMC360, T176, D44 w/Detroit 3.73s, RE 4" YJ lift and 35s.. Lower 2 Guardrail Down Schoolbus Slickrock Tellico Save Crozet More Crozet |
|
|
|
|
02-02-2006, 10:51 AM
|
#5 |
|
Registered User
|
You'd probably still be comfortable around 60 with those in 4th gear (the 3.70s)
__________________
1982 CJ7
Iron Duke "Hurricane" 151 CID 2.5L 4-Cyl T177 Tranny | Dana 300 T-Case Dana 30 Front | AMC 20 Rear |
|
|
|
|
02-07-2006, 08:37 PM
|
#6 |
|
Registered User
|
what is the carrier break in the 20's so your saying that 4;10 can be put on my 3;54 carrier in my 30?
|
|
|
|
|
02-07-2006, 09:52 PM
|
#7 |
|
Registered User
|
The Dana 30 has two different carriers - 3.73&up and 3.54&down.
The AMC 20 also has two carriers - 3.07&up and 2.73&down.
__________________
Jeep #1 = 76 CJ5, 304, T18, Twinstick Dana 20, Lock-Right in front, Yukon HD front axles, One piece axles - Detroit Locker in rear, 2.5" Rancho Springs, 1" lift shackles, 32x11.5 Super Swamper TSL/SX, Warn XD9000i, York OBA. Jeep #2 = 80 CJ7, 401, T18, D300, 3" Black Diamond Lift, TrXus M/T 33x12.5, Yukon 1 piece axles, Auburn posi in rear, Detroit TrueTrac in front, Ramsey 8000. |
|
|
|
|
02-07-2006, 09:59 PM
|
#8 | |
|
Registered User
1978 CJ7
|
Quote:
__________________
Sparkplug 1978 Jeep CJ 7 258 6cyl Quadra-Trac with T400. Custom 3" body lift. Flatfendered. Custom bumpers. Full 6 point roll cage. 36" IROK's. 2 1/2 suspenion lift and 1/2 shackle lift. GM HEI, Superior 1-piece axles, 4.88 gears, Weber carb. Locked front and rear. Best of all, fours sons who LOVE TO RIDE! |
|
|
|
|
 |
| Thread Tools | |
|
|
|
«
Previous Thread
|
Next Thread
»
|
| Suggested Threads |
|
 |
|
|
Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.
|
