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Does anyone run 40" tires or bigger on a stock 350?

I've got a stock 350TBI, th350, 203/205 t-case, 1-tons with 5.13s, and 42s. I had the bright idea to climb a snow mound at the end of the street the other day. Sunk the front end in it and couldnt get out.

I could spin the tires a little in 1st but couldn't spin them in reverse. I put the 203 in low range and was able to spin the tires 1st and reverse, ended up using the winch to get out though. You will definitly notice some loss of power if you dont go to deeper gears. Rebuild/beef up everything and leave the engine till last. Thats what I'm doing, once this motor goes, a 400hp/450tq 383 will replace it :)
 
I had Shortbox with 1tons 5.13's and old 38.5x16. Super Swampers.With a stock small block and a 4 speed. Went down the road awesome( way better than the old 1/2tons 3.08's and 36in Ground hawgs). Could powerbrake in second.

Go as deep in gears as you can maybe even one step further than you think you will need, Cause down the road ya never know.
 
x2 on building the axles first if you want 40" tires. Start at the axles and work your way back up the drive train. Build the engine last. That way is cheaper in the long run (less breakage).

I'm running 4.88 gears and a 700R4/241 with 38" tires and almost wish I would have gone with 5.13s. My stock 350 is tired and it moves just fine. I don't pick fights with vettes at stoplights though. :D
 
Stock 350, close to 47" tires 21.5" wide.

Gus
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it really depends but yes craigslist is a good start , ONE ton rear ends requre a little bit of welding but you could have a shop do it if your not comforatbel it would be less than an hour of labor

honestly do a search on "one ton swap" and "dana 60" and "14 bolt swap" you'll come back with TONS of info
 
The1980BEAST said:
Can I just get axels off of craigs list? Do they just bolt on or is there welding and such?
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Check the classifieds on this sight as well. Front D60 axle is bolt on. Rear 14BFF axle can be a bolt on if it is out of a 3/4 ton. As mentioned, a set of CUCV axles out of would be a good choice even though you will have to get some new perches and shock mounts. You can get the mounts at DIY4X.
 
wasted wages said:
yeah,,,don't waste your time....:rolleyes::rolleyes::rolleyes:

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unless you want about 800 hp under your right foot........




.
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Yeah cause that motor works really well in slow speed applications and gets great mileage and is super reliable :rolleyes:

that might be cool for a mall cruiser or a Dedicated mud truck . but what would happen if you were 30 miles back in the woods and you ruined your blower belt??? or it backfired and blew your saftey studs ? or those dual holleys kept flooding out on inclines???

not saying that its not cool to have a blown big block but for "real" wheeling its not practical or NEEDED
 
I dont have time to read this entire thread but if it hasn't been mentioned another thing with big mass tires is axle wrap up. torque bars (traction bars) help with horsepower to the rear tires alot.

my buddy runs 46" mickeys on his stock 350 and it gets around ok.
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Alright I dont plan on doing any hardcore wheeling and probably not alot of rocks just mud and trails.

So I was thinking about going 3/4 ton axles and regearing them.

Thats 14bolt rear end (does full floater or semi floater matter? whats the difference?)
and D60 right?
And was thing 5.13's is that good?
 
Lol I find this topic amusing to be honest. Coming from someone who is also a big Toyota fan I have to say I've seen plenty of 120hp 22re's pushing 38s and 40s with 5.38's.

Secondly in my personal opinion your motor does not matter for the most part. If you are geared properly the only additional stress put on the motor is the additional weight of rotating the tires. Gears take care of the added size of the tires, going one size lower on gears more than takes care of the added rotational mass.

I have zero problems pushing 36in TSL's with 3.73's and a sm465 in a truck that came stock with 3.23/4(?) and 31's. The proper gears for my truck are technically 4.10's and it definitely doesn't need them.

A LO5 is a very good power plant. 300ftlbs of torque stock is nothing to mess with despite what alot of people seem to think. Throw headers, intake, and a RV cam ontop of that and you've got more power than any properly geared truck could ever need.

Thats my opinion and I stand by it. Gears not horsepower.
 
Although I have a 454 (stock, tired), I went from 35s to 38.5s with 4.10 gears. It felt "OK". But then I swapped 5.38 gears and WOW what a difference! I highly recommend to swap gears as low as you can before getting into the engine.

Now I see 42s in the near future, I guess I'll have to rebuild the engine with new heads and cam to compensate for the change.
 
I ran 2 different 350's w/ 39.5's and it both were anemic w/ 4.10's. Then again it was the original 74 and a random truck 79 motor which were rated at 165 hp the only thing i did was headers and hei. Put 5.38's in there and woke that motor up, but still couldn't spin them on the street or without any low range.
 
I'm building a set of one tons for a 6.2 diesel and nv4500 to push 38's and went 4.88. Would of gone deeper, but wanted to get to 65 on the highway if needed. Gears make a huge difference. Also be carefull running that big a tire on a 1/2 ton axle, just blew a 10 bolt rear w/ 33's goin up a bridge..Dave
 
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