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Discussion Starter #1
i got an 84 bronco with 33's. trans, transfer case, front and rear diff are all rebuilt by previous owner. when i get on it i cant even spin the tires on wet pavement. is the trans? idk what to do. my dad thinks it's the trans. i think it's cuz of the big tires. stock rear end ratio. help me out guys i dont know what to check.

thanks
adam
 

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im not really sure why your tryin to crash your truck...why would you want to spin tires on wet pavement?

Anyhow, i like keeping the stock ratio on my trucks with bigger tires...i like the low range...
 

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Dead Horse
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what engine do u have?
traclok?
its probally the gearing
 

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well first off it would be nice to know what motor you have...and trans???????

302 or 351 or I-6????

my 91 302 w/ 32's barely spins on wet pavement...which is part of the reason why im doing a 351w swap next weekend

if you have the 302. problem found

dc
 

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Discussion Starter #5
well it's a 351 carburated, i think, and with a stock trans. my dad is saying to me that the truck has no balls. ya know what i mean. it takes a while to get to like 35mph. i think it might be running rich?
 

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You should probably start with a tune-up and get the carb adjusted by a professional, since thats never a bad idea anyways..A friend of mine has an '85 150 with the carbed 351 and C6 and can roast his 33" BFGs anytime he wants to, and my FI 351 & E4OD would spin 35s before I locked the rear diff (even before i regeared to 4.10s)...A 351 and either of those transmissions should be able to spin a 33. If you get the engine tuned up and it still don't have the power it should then look further back in the drive-train. I bet its just the motor needin' some lovin though.
 

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Designated Tranny Killer
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my 302 can spin wheels on dry pavement. Even with the top on.
 

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I had a early 80's bronco,351w,rebuilt tranny, c6,& factory gearing with the same problem,no balls, turns out it was the carb. it was a holley, that i replaced. not a ton more get up but a drastic improvement don't know if this will help. you said the tranny & rearend was rebuilt even with 33's it shouldn't be that weak that it takes awhile to get to 35 mph.I'd look into the carb.
 

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It's BTW Not AKA!
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DcSkater602 said:
well first off it would be nice to know what motor you have...and trans???????

302 or 351 or I-6????

my 91 302 w/ 32's barely spins on wet pavement...which is part of the reason why im doing a 351w swap next weekend

if you have the 302. problem found

dc
BULL...my 302 will spin em on dry pavement with 33s...no problem. He has got a different issue if the truck is slow starting. I agree with the tune up. Gears will always be the culprit before lack of engine power.
 

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GTRider245 said:
BULL...my 302 will spin em on dry pavement with 33s...no problem.
Yea not saying a bronco with a 302 can't lay rubber but you are in a pickup, no weight in the back.
 

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I agree with GTRider245 it's not a weak motor even if it is a 302, I have a 302 in my 89' "bronco" & i can roach the tires easy.I do only have 31's but any time you want to come over & swap out tires i'll be more than happy to lay down some rubber for you with my 302 & 33's.
 

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Engineer
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He might have 3.08 gears instead of the more common 3.55's
 

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How old the engine and trans are is probably what it is. when my 300 six was stock and stock ratios i could spin easy on wet pavment, never tried dry. Now with some work and a fresh rebuilt drivetrain and engine with 3.70's its a little easy to do it anytime I really want to;)
 

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my 90 can barely spin the tires on wet pavement with the 33's and stock gearing. But it can spin em good if enough water is on the ground.
 

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i usually can only lose traction if im in the rain and making a turn. rarely in a straight line. never on dry pavement. i've got 31's, new jasper 351, rebuilt e40d trans.

i dont really see the point in a truck.
 

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Lick my balls
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Ptack1 said:
my 90 can barely spin the tires on wet pavement with the 33's and stock gearing. But it can spin em good if enough water is on the ground.
Just a quick question for you Ptack, doesn't water make the ground wet?

I have 33s 4:11 posi rear end, I can spin em good in the rain. Dry pavement on the other hand, for the most part, I can only spin em when I got the wheel cranked.
 

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Excessively Engineered
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ToddACimer said:
He might have 3.08 gears instead of the more common 3.55's
:stupid

I couldn't turn over puny 32" on gravel from a stand still by stomping the gas. I thought this sucked then I seen the gearing. 3.07 Why the crap did a 4x4 come factory with 3.07 I will never know. I could power brake it on gravel and get them to spin but not from take off.
 

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Discussion Starter #19
it's a brand new 351 just installed by the previous owner. i'm pretty sure the damb carb is effed up cuz it has some idling problems. what carb should i get guys. the truck already has hooker headers and flowmaster exhaust.
 

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im sure those 3.08's or 3.07's or whatever it is are great on the highway.
 
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