620 a little help please

[djpapo]

ok heres my dilemma i have 1973 620 short bed i got a 5 speed transmission of a 1978 280z not a short tale so as u all know the driveshaft on my 620 is now too long so i got the front part of the driveshaft of a 720 king cab it fits the transmission n it is a bit shorter then the one the came on my 620 but I'm still a inch or a bit more too long can anyone help or give me n idea on what too do i want this baby out on the road already pls thank u

[datzenmike]

You really need the front half of the driveshaft from a '78-'79 620, not a 720.

[djpapo]

i knew it damn it i knew it knew hahaha thank u datzenmike 

[djpapo]

[djpapo]

[djpapo]

[]2eDeYe]

Welcome, looks like a nice truck. You should be able to get either the 720 or the 620 shaft shortened by a driveshaft place if you are having troubles finding the piece you need. :)

 

 

 

[datzenmike]

Good point, it may be cheaper in the end. Also keep an eye out for a pre '78 grill. Once you see it you'll know why.

[djpapo]

thank u guys one more question how can i get the right measurements to get the driveshaft shorten ? n i think ive seen the grill ur talking about but only online lol

[datzenmike]

Good question. Ask the shop who's doing it what they want. Usually it's measired center of U joint to center of U joint. Take yours apart, remove both U joints and compare side by side or take both to the shop.

[jvb5577]

Good point, it may be cheaper in the end. Also keep an eye out for a pre '78 grill. Once you see it you'll know why.

Is this the one with the rings that protrude out around the headlights?  Like this?

 

 

As for the driveshaft I have one off a '79 620 for sale.  It would be the correct size you need.  Let me know if you want to do that route instead.  I live in Tracy, CA so not too far from you.  Also have a collection of parts so if you need anything else let me know.

[K_trip]

- removed -

[flatcat19]

Needs more low and less offset. 

[91hrdbdy]

those wheels look familiar?? 

[laotsu]

you sure you want a Z-car tranny in a truck? Wayno says he kept burning his out and finally started building L series truck five speeds. I guess an LZ23 is more than the L20b though.

[flatcat19]

you sure you want a Z-car tranny in a truck? Wayno says he kept burning his out and finally started building L series truck five speeds. I guess an LZ23 is more than the L20b though.

 

Wayno also uses his stuff as a work horse. Not as a regular driver. 

 

Post pics of Zcar trans to verify what it is. 

[datsunaholic]

Z car transmissions are identical to truck transmissions, except in gear ratio.  So there's no difference in strength.  In fact in '77-78 the only difference was the speedometer drive cog- even the ratios were the same.

 

Now, using a dogleg (car transmission) would be a different issue.  Those are the weak ones.  I've blown up 2 of them, and I don't even drive them hard.

[laotsu]

Z car transmissions are identical to truck transmissions, except in gear ratio.  So there's no difference in strength.  In fact in '77-78 the only difference was the speedometer drive cog- even the ratios were the same.

 

Now, using a dogleg (car transmission) would be a different issue.  Those are the weak ones.  I've blown up 2 of them, and I don't even drive them hard.

that's good to know.