Mud drivetrains

[Big79'Terry]

How about some tech??? What are ya' runnin?? Tires/Axles/TC/Trans/suspension/steering..........What are ya' breakin??

My Junk; 79' Big B w/87' KPD60 4.56 Detroit 35 spline hub to hub.Cage weld on arms, no C-bushings/Rancho 4" coils/D60 rear 35 spline 4.56 Detroit shackle flip traction bars. 42" TSL.Sawzall fender mods, NP435/205.High Angle (Jesse) 1350 rear CV shaft.

[iniviate]

Originally Posted by Big79'Terry

Tires/Axles/TC/Trans/suspension/steering..........What are ya' breakin??

eh... i'll play.

my mud truck....
18.4-30 R2's/5 Tons/Stock/4L80e/4 Link/hydraulic ........ not finished, so i havent broken anything.

my jeep...
39.5 boggers/1 tons/none/SM465/stock YJ/XJ combo/hydro-assist .... haven't broken anything except 14 bolt u-joint straps

my old mud truck was...

14.9-24 R1's/2.5 tons/3500rpm/th400/4 link/hydraulic ..... it didn't break anything either.

[Big79'Terry]

Imagine that, the FL mud guy & the PNW mud guy hangin' it out for the crowd. Spent some time on Chucks trucks forum, you guys are wackier, more redneck than us!! Those trucks w/72" tractor tires & 1500 HP are awe inspiring!!! One of those trucks might make it thru our "TankTrap". We stuck a Cat 235 Excav all the way to cab in trap for Hangover 09'. Show us some pics please!?

[m1a1abram]

49 inch irocs, 2.5 ton rockwells, detroit front, welded rear. Leaf springs front and rear with anti-wrap bar. TH 350, NP205, 1410 u joints

[Big79'Terry]

M1...& all other prospective posters to this thread: Pics Please?!

[Lilmuddy]

Heres a question I'm been pondering. When doing a 4-link (yes I have searched and read alot and still reading the rest) what version of 4 link are you using? I see alot of rigs running lower links parallel and to the frame while the uppers are triangulating from the axle center to the frame. I see this mostly on the supper tall rigs running ag tires though. Having just got back from Kuwait I'm researching all I can before begining to sling my rocks under my 79 f150.

[83kingcab]

im runnin a 79 f-150 with 44" gumbo mudders on 15x15 eaton rims. dana 44 front, 9" welded rear, 3:50 gears, 351m, 4spd., 205 t-case, l&l traction bars, 9" skyjacker suspencion lift and 3" body lift. so far i've broke 2 inner axle shafts, 1 stub shaft, broke the long side axle tube, snaped the front output on the 205, 2 rear 3rd members and i keep breaking the secter shafts off the steering boxes.

[RebelRider]

TH350/Np205, Rockwells (welded rear, Detriot Front), Leafs, Full Hydro, 49" V-treads.....................Oh yea, and I break TH350/NP205 Adapter plates for some reason

[Big79'Terry]

83King...I campaigned the 1/2 ton F-trucks for 3 decades & am quite familiar with the shortcomings. Finally went to tons on the Big Green Hunka'Junk. Much happierLess Drama. Get rid of that half ton stuff or downgrade tires, yer' gear ratio's high as well. Being locked up@lower gear ratio w/ heavier axles increases the fun factor by a bazillion!!! Keep floggin yer' FOMOCO brother!
Rebel.....Get a TH400!!!

[JohnnyU]

Originally Posted by 83kingcab

...i keep breaking the secter shafts off the steering boxes.

Sounds like you need to run some type of Hydraulic assist on your steering. The hydraulic cylinder will take some load off your steering gear, and most likely prevent the failures you're seeing. Either that or it's time for full-hydraulic steering on that rig...

[RebelRider]

Originally Posted by Big79'Terry

Rebel.....Get a TH400!!!

That was my plan, but finding a th400 4wd was almost impossible at the time in my area. So i got a turbo 350 built to hold some HP. Been running strong for almost 2yrs................

[83kingcab]

got any ideas on how to keep from snaping the front output shaft again? i was lucky and had a extra 205 so i just changed the whole case

[JohnnyU]

Originally Posted by 83kingcab

got any ideas on how to keep from snaping the front output shaft again? i was lucky and had a extra 205 so i just changed the whole case

I'd have to see your front driveshaft angle and know what the fracture looked like. I'm thinking it was caused by a bind, but that's just a guess without knowing more about your set-up.

[RebelRider]

Originally Posted by 83kingcab

got any ideas on how to keep from snaping the front output shaft again? i was lucky and had a extra 205 so i just changed the whole case

Since you already have a 32 spline out-put it has to be binding. Are you running a 1350 yoke or a 1410?

[shakyrick]

I run 2.5 ton rocks with 18-4 26 r2's it's 4 linked with coils with a 21.5" profab drop t-case going to 2" axles in the rear broke the stock replacement axles

[lumberjack1986]

I'm gathering parts for an eventual build, but the drivetrain looks like this:

454 (have) Going to add a blower or juice.
TH400 Manual w/ compression braking
203/LM205 (got the 203)
2.5T Steering Rocks w/ 2" Ouverson's (got the Rocks)


The tire for straight mud will be a R1 or R2 style tire, 50"+.

[Proeliator]

Dana 70 rear and Dana 60 front with 35 spline Superior chromoly axes, CTM u-joints, Detroit lockers front and rear and drive slugs. Used to run a C-6 but I couldn't keep it alive so I've been running an NP-435 and an oversized Mcleod clutch with success for the last handfull of years.

[94stepsideford]

Originally Posted by Proeliator

Dana 70 rear and Dana 60 front with 35 spline Superior chromoly axes, CTM u-joints, Detroit lockers front and rear and drive slugs. Used to run a C-6 but I couldn't keep it alive so I've been running an NP-435 and an oversized Mcleod clutch with success for the last handfull of years.

Yeah, but you drive like a pussy.

[83kingcab]

the front u-joint is running at 25 degrees at ride height

[Proeliator]

Originally Posted by 94stepsideford

Yeah, but you drive like a pussy.

I protest, I drive nothing like you

[82F100SWB]

Stock 60/10.25/T19/1345 in my junk, haven't broken anything yet... But I'm running little tires(38.5 skinnies) and no real serious HP, an 8.0:1 460 does not big hp make...

Pro, that a single or dual disc McLeod clutch you're running? I've been kicking around the idea of going with one of those so I can keep my T19, I haven't been able to find a decent clutch that will take a launch with any sort of rpm in high range. 1500 seems to be about the max I can pull off without clutch smoke if I dump it. I know gears lower than 4.10's would help, but, if I could pull off a 3rd high launch I wouldn't need to worry about shifting in the 250 foot pit... Right now even in 2nd I have to get the clutch engaged before 1500, then hammer on it.

[fordb0y75]

i got a 1975 ford f250 hiboy heavyduty its old running grear was a 390 to a 4 speed manual and a divorced 205 to a d60 rear 30 spline axle shafts and a f
d44 heavy duty with 27 spline axles and it was a kingpin style it also had hydro assist steering from the factory.

now i got the same truck with 2.5 ton rocks its gonne have 46 american farmers 203-205 doubler and a 460 mildy built. i was thinking about 4link but to much money and not enough know how or a place to build it i wish i had pics but dont:evi

[cslimfu]

78 f-250, mild 460, t-18 and 205. 60's front and rear,4.56's detroit front,trac lok rear.4" lift 42" swampers.selling all that except the truck. have rockwells and 4 link parts, c-6 and new 205. also planing to stroke to 557. want to run 54 boggers but, will probably end up on xzl's(way cheaper).

[94stepsideford]

Originally Posted by Proeliator

I protest, I drive nothing like you

Curbs are hard on shit.

[xrm]

89 k5 carbed 350 700r4 208 14ff (was 12b till too much air cracked pumpkin in 3 spots) d44 other than the 12 bolt took me a year to break a front inner shaft



found out tsls have no grip