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Towing 7500#'s with a 305 & 3:42's

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by gotmud?, May 5, 2002.

  1. gotmud?

    gotmud? 1/2 ton status

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    Towing 7500#\'s with a 305 & 3:42\'s

    anybody do this on a regular basis?,looking at a new boat and wondering if I should be looking for a new used suburban too.
     
  2. Can Can

    Can Can Pusher Man Staff Member Super Moderator

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    Just my opinion, of course, but I personally wouldn't tow anything over 5500 lbs. with a short-wheelbase rig.
     
  3. 84_Chevy_K10

    84_Chevy_K10 Banned

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    I don't tow with 1/2 ton rigs at all anymore personally....

    But, if I was, I definitely wouldn't even consider 7500# with that setup. If you've got a 700R4, you're asking for trouble (and you'll get it, I promise).

    All I can say is, good luck. My 1 ton would definitely feel that load, and it has a 350 and 4.10s.
     
  4. arveetek

    arveetek 1/2 ton status

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    I wouldn't do it. I tried pulling an 8500# fifth-wheel with a 3/4 ton, 305/TH350 setup and 3.42 gears. I couldn't get it out of second gear most of the time because it didn't have enough power. The motor was smoking bad, so I rebuilt it and found broken rings in it. It pulled better after rebuild, but it broke some rings again.

    I replaced the 305 with a 6.2L diesel and 4.10 gears, and now it's a lean, mean, towing machine. I'd say you at least need a 350 in a 3/4 ton for good handling and safe towing.

    Casey
     
  5. woody9

    woody9 1/2 ton status

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    have a 91 350/700R4 sub that had 3:42 in it and pulled our 30' travel trailer. Dry 4275 - GVW of 7235. Ended up shelling 1st rear end ($1K for a rebuilt), then about 700 towing miles later, started twisting axle shafts (a real pain when trying to get the C clip out to replace a seal! that's how I found out).
    Now i've got 4:10/14FF/BIggest tranny cooler I could find & a 4 row radiator in/under it and it seems to do much better.
    Also a dist hitch. Can't imagine trying it with a short wheel base.
    I'd try and hunt down a 3/4 ton.
     
  6. gotmud?

    gotmud? 1/2 ton status

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    Thank's guy's...Look's like if I'm serious about this boat I better start looking for 3/4 ton diesel subs./forums/images/icons/smile.gif
     
  7. woody9

    woody9 1/2 ton status

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    I wouldn't limit myself to a diesel. A big block should haul the mail just as easy!
    Seldom do i hear anyone on this board, "Man, i've got too much truck & need less (engine/gear)!" (mileage excluded of course!)
     
  8. Chevit

    Chevit 1/2 ton status

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    Re: Towing 7500#\'s with a 305 & 3:42\'s

    I pull a 5500 lb.23ft travel trailer with a K5, 350 cid, 700r, and 3.73 rear. Even with the wieght dist. and sway bar ect. it gets a little hairy with the short wheel base.
     

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