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01-02-2004, 01:14 AM
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#1 |
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Got Mud?
Join Date: Sep 2003
Posts: 361
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Gear Change?
I want to put 35"s on my truck but will i also have to change the ring/pinon? Whats a good gearing for mostly street-but some mudding/offroad?
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Dan Got mud? |
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01-02-2004, 01:47 AM
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#2 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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I had 35s w/ 3.08 gears in an 85 K5 and it sucked! Couldn't use OD on my 700r4. I have 33s w/ 4.10 gears now. Gearing is a little on the low side. I can start off in 3rd gear. (have a SM465)
I'm going to assume you have a 350/th350 and 1/2ton running gear for 35s I'd say no higher than 3.73 gears but 4.10s would be better.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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01-02-2004, 03:32 AM
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#3 |
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Registered User
Join Date: Jun 2003
Location: Calgary AB
Posts: 110
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4.10s work perfectly with 35s. It will rev 2565rpm at 65mph in road gear which should be perfect.
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01-02-2004, 03:22 PM
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#4 |
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Registered User
Join Date: Aug 2002
Location: Trenton ,Texas
Posts: 328
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YAH, 4:10. PERFECT
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01-02-2004, 06:10 PM
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#5 |
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Got Mud?
Join Date: Sep 2003
Posts: 361
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Thanks for the replys. How much would it be to put 4.10s in both front and rear?
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Dan Got mud? |
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01-02-2004, 06:46 PM
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#6 |
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Registered User
Join Date: Aug 2002
Location: Trenton ,Texas
Posts: 328
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I DO ALL GEAR CHANGES MYSELF, ORDER THE GEARS AND A HALF INSTALL KIT FROM JEGS AND FIND SOMEONE TO DO IT. THE AVERAGE PRICE IS $250 PER AXLE. GM AXLES ARE THE TOUGHEST TO DO.....RAT
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01-03-2004, 08:09 PM
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#7 |
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Registered User
Join Date: Jun 2003
Location: Calgary AB
Posts: 110
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Depending on what axles you have it could be easy enough to do yourself. It takes alot of patience to do it the first time especially with GM axles like Rat said. Yukon gears come with a booklet that is very helpful. There are also some websites that have good guides. A 1980 chev would have a 10 bolt front and 12 bolt rear if it's a half ton. You will most likely have to change the carrier in the 12 bolt. The 10 bolt should be OK. By the way, if you want to go with 3.73 gears I have a very good used set $75 or a very poor used set free. I also have used carriers for 10 or 12 bolts. Just let me know what you need.
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You can't get out if ya don't get in |
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01-04-2004, 12:45 AM
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#8 |
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Got Mud?
Join Date: Sep 2003
Posts: 361
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I have a Dana 44 front...
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Dan Got mud? |
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