Trailers

[Jesse masterson]

I recently purchased a 85 k 5 blazer with a 6.2 Detroit diesel runs great but when I out my dk 45 on trailer it won't pull up any kind of steep hill the tranny isn't slipping the motor Rpms slow down to a near stop then I put it in low lock 4 wd to get up a 45 degree incline do you guys think the motor is weak orwould a change of gears be on order I believe it has highway gear 307s I think I only use it rarely not a daily vehicle

 

[bcp]

What transmission? It it or you downshifting?

You might get mere answers in the trailer forum:
http://www.tractorbynet.com/forums/trailers-transportation/

Probably not 45 degree hills you are towing up.

Bruce

 

[Jesse masterson]

Ha maybe 35 to 38 pretty steep it has a GM 400 tranny

 

[Jesse masterson]

Also I should mention I am downshifting and the motor sounds good no blue smoke

 

[Woody65]

That happened to me in a 1998 Chevy 3/4 ton pickup and it was the catalyctic converter. That was a gas vehicle though. Don't know if this helps???

 

[Coyote machine]

Can you use the tractor to pull the truck and trailer up the hill?!

 

[Jesse masterson]

Thanks woody for the idea I'm not sure if diesel has catalytic converter or not I'll check at least that's a lead to follow

 

[Jesse masterson]

And coyote that is a option lol but not the one I'm looking for

 

[Bladehauler]

If I remember right , the 6.2 had about 160 hp so I would think pulling a grade like that with a loaded trailer, 4wd low would be the only way to get it up.
just the reality of the situation.
Of course you could overhaul it put a turbo, injectors, beef up the bottom end , trans, third members. easy to get carried away and have a 30 K old blazer !!

If it to just be used around the property , then ya spend about 3k grand for some 5.38 gears and lockers !!

 

[Jesse masterson]

Bladehauler I think your right do you think changing gears on front and back would solve problem

 

[Bladehauler]

The old naturally aspirated diesels didnt have a lot of low rpm torque so yes a gear change would definitely help,But with the low speed diesel ( 3000 _3600 rpm) cant remember , top speed would be limited.

 

[Highbeam]

Well for comparison my ridiculous 2000 powerstroke diesel with 444 cubic inches only makes 235 HP at the crank. The F350 weighs 7500 lbs empty too compared to maybe 5000 for the blazer.

160 isn't too bad.

 

[Jesse masterson]

Never thought of it like that.

 

[rasimmo]

I think the comparison to the 2000 F350 is a perfect example of the difference a set of gears would make. Those either had 3.73 or 4.10 gears. My experience with those K5s in the military was that they were geared real high. Great for fuel mileage, but terrible for pulling.

 

[buggieart]

I have a 1996 dodge 3500 ext cab cummins with auto and only 168000 miles for sale. it has done everything i have asked. wife lost job and i cant keep up with the bills any more.

 

[Highbeam]

Yes, the F350 in 2000 has 3.73 gears and a 4 speed locking automatic transmission.The non locking 3 speed trans in that blazer means that it has to have tall rear end gearing just to be able to get to freeway speeds.