Dogleg 5-speed Bell housing Question

[JoeMan824]

Ive got a l18 with a dogleg 5-speed in the 510 I recently picked up. The 5-speed im assuming is from a nap-z motor because it is tilted in the car and the shifter is angled towards the passenger. If i wanted to correct this is it possible to use a z/zx bell housing or does it have to be the correct dogleg trans bell housing from an L series engine? Ive found info saying different things unless im reading something wrong....

 

http://community.rat...-swap-into-510/

 

and

 

http://www.newprotes...0/gearRatios.pl

 

I am hoping a z zx bell housing will correct the problem cause from what i have found near me the are easier to come by.

 

Thanks!

[datsunaholic]

Dogleg (63A) series transmissions use a unique front case (what you are calling a bellhousing). There are 3 versions- A-series, L-series, and NAPS-Z. You cannot use a front case from a 71 series transmission (which is what the z/zx transmissions are). You would have to find another 63A transmission, and as you said, they aren't easy to come by.

[Skib]

would a 510 4 speed work?

 

cuz weve got plenty of those layin around and close to sac

[datsunaholic]

As a unit, or as a front case for a dogleg?

 

They're VERY different externally, different enough internally, although someone with a lot of patience, a good milling machine, and experience welding cast aluminum could probably make it work.

[JoeMan824]

shoot. I guess the hunt continues

[JoeMan824]

skib u have 4 speeds laying around and are close to sac for sale??

[datzenmike]

Ive got a l18 with a dogleg 5-speed in the 510 I recently picked up. The 5-speed im assuming is from a nap-z motor because it is tilted in the car and the shifter is angled towards the passenger. If i wanted to correct this is it possible to use a z/zx bell housing or does it have to be the correct dogleg trans bell housing from an L series engine? Ive found info saying different things unless im reading something wrong....

 

http://community.rat...-swap-into-510/

 

and

 

http://www.newprotes...0/gearRatios.pl

 

I am hoping a z zx bell housing will correct the problem cause from what i have found near me the are easier to come by.

 

Thanks!

 

When the Z dogleg is turned to to the right to mate to an L series motor, it will lift as well as tilt to the passenger side. Just imagine a ruler on a table. Put your finger on the 6 " mark. Now rotate the ruler like a propeller. Well right away you can see that one side is on the table top and won't go down. If you lift the other side the middle, with your finger lifts too. Unless the rear transmission mount is modified the tranny tailstock will position itself slightly higher. Among other things this will alter the driveshaft angle and cause vibrations. Modify the rear mount to lower it back into the stock location and build a wedge shape to properly support it. Bend the shifter to the left to get it vertical. There's no reason why you can't run this on an angle and this is way easier than removing it for a four (yuck) speed..

[JoeMan824]

people say the dogleg is weak... is it stronger than the stock 4 speed?

[datsunaholic]

6 of one, half dozen of the other. Both have weak spots. The small bearings and shaft diameters are pretty much the same on both. Doglegs tend to break synchos and pop out of gear when they're worn out. The overdrive tends to put more strain on internal components. The original 63 4-speed (not the later 63L) had a tendency to break forks and engage more than one gear at a time, with rather catastrophic results. But in both cases that's either from exessively worn gearboxes, or ones that have been abused by shoving 120HP, or doing burnouts, or slamming through the gears. Or overloading trucks, that sort of thing.

[goonlover]

hey dude have i got a solution to your problem? (and mine). I have an L series 5 spd dog leg which puts me in the same dilema as you because im doing a Z engine swapp. what i mean is that you got the trans i need and i got the one you need. let me know.

[EricJB]

I have a dogleg front case for an L motor. I blew 1st gear up, and tore it down to have a look. So it's bare. PM me if you need it and any other dogleg bits.