Transmission spline count?

If there isn't a place for your question then put it here.
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Transmission spline count?

Post by Beretta1234567 »

Does the 4t60 have the same splines as the 4t60e?
Last edited by Beretta1234567 on Thu Apr 21, 2016 3:19 pm, edited 1 time in total.


1988GTU
Registered User
Posts: 2744
Joined: Sat Mar 23, 2002 1:06 pm
Location: A town up north

Re: Transmission spline count?

Post by 1988GTU »

90 GP should be a 3 speed unless mclaren. 3 speed to 4 speed in this case would share splines.


_________
Image
-------------
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Re: Transmission spline count?

Post by Beretta1234567 »

Its from a grand prix
Last edited by Beretta1234567 on Thu Apr 21, 2016 3:20 pm, edited 1 time in total.


1988GTU
Registered User
Posts: 2744
Joined: Sat Mar 23, 2002 1:06 pm
Location: A town up north

Re: Transmission spline count?

Post by 1988GTU »

The 90 grand prix 3 speed with the 96 Beretta 4 speed will share splines. McLaren should, but dbl check.


_________
Image
-------------
User avatar
3X00-Modified
Administrator
Posts: 10912
Joined: Thu Jul 05, 2007 9:18 am
Location: Brooklyn CT

Re: Transmission spline count?

Post by 3X00-Modified »

You can't use a stock beretta inner passenger axle cv because the HD trans has a different spline and diameter on the passenger side spider gear.

Why do you want the HD trans? The only difference is the differential.


Mr.Pink
Supreme Unit
Sleepy Goodness
"Beretta Guy"
User avatar
3X00-Modified
Administrator
Posts: 10912
Joined: Thu Jul 05, 2007 9:18 am
Location: Brooklyn CT

Re: Transmission spline count?

Post by 3X00-Modified »

Passenger spider gear on the right... This is a 96 60e-hd diff. I'm not sure if they are exactly the same.

Image


Mr.Pink
Supreme Unit
Sleepy Goodness
"Beretta Guy"
1988GTU
Registered User
Posts: 2744
Joined: Sat Mar 23, 2002 1:06 pm
Location: A town up north

Re: Transmission spline count?

Post by 1988GTU »

I was referencing the hub spline.


_________
Image
-------------
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Re: Transmission spline count?

Post by Beretta1234567 »

oh, I see.
I managed to find it.
Last edited by Beretta1234567 on Thu Apr 21, 2016 3:20 pm, edited 1 time in total.


1988GTU
Registered User
Posts: 2744
Joined: Sat Mar 23, 2002 1:06 pm
Location: A town up north

Re: Transmission spline count?

Post by 1988GTU »

Why not swap the inner axle pods?


_________
Image
-------------
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Re: Transmission spline count?

Post by Beretta1234567 »

1988GTU wrote:Why not swap the inner axle pods?
Will the joints connect up correctly?
I thought the joints were different?


User avatar
3X00-Modified
Administrator
Posts: 10912
Joined: Thu Jul 05, 2007 9:18 am
Location: Brooklyn CT

Re: Transmission spline count?

Post by 3X00-Modified »

You can if you have the pod. That's what I'm doing. But I'm starting to wonder if the 90 trans is the same as the 96 I'm using... I'll count the splines but iirc mine is more that 34 on the passenger side.


Mr.Pink
Supreme Unit
Sleepy Goodness
"Beretta Guy"
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Re: Transmission spline count?

Post by Beretta1234567 »

I will see if the pods can swap, i might try it.
Last edited by Beretta1234567 on Thu Apr 21, 2016 3:21 pm, edited 1 time in total.


User avatar
3X00-Modified
Administrator
Posts: 10912
Joined: Thu Jul 05, 2007 9:18 am
Location: Brooklyn CT

Re: Transmission spline count?

Post by 3X00-Modified »

96 beretta and 96 60e-HD drivers side is 35 and the 60e-HD diff I have is a 39 tooth spline on the passenger side. Stock beretta yes is 34.

Oh and just a FYI... Eric Brennan was running mid 13's with his GT and a 3500 with a 3t40... So they can handle the power if you build them right.


Mr.Pink
Supreme Unit
Sleepy Goodness
"Beretta Guy"
Beretta1234567
Registered User
Posts: 389
Joined: Sun Apr 15, 2012 11:40 am

Re: Transmission spline count?

Post by Beretta1234567 »

That sounds good.
Last edited by Beretta1234567 on Thu Apr 21, 2016 3:21 pm, edited 1 time in total.


User avatar
Rettax3
Registered User
Posts: 1805
Joined: Mon Oct 22, 2012 3:34 pm

Re: Transmission spline count?

Post by Rettax3 »

1988GTU wrote:I was referencing the hub spline.
Hub splines on a Beretta are much smaller than the W-body cars, just to put the info straight. As for swapping-over the inboard tulips, well, I wouldn't count on it. Maybe, but I've done just enough custom axle work, swapping this to that and so on, that I can say not much matches anything else, even on GMs.

Going with a '96 Beretta, 4-speed auto:
But, I think the Beretta axle might just plug in to the GP transaxle -the right side inboard spline-count is 34 for the Berettas as well as both GP trans options, but overall shaft length is different GP 3-speed vs GP 4-speed vs Beretta.

Left side is also favorable for you, as the Beretta and the 4-speed GP axles use 35 splines with a female socket, while the 3-speed GP has 34 splines (again female).

I would talk to Asylum before counting on your TH125C (3T40) to handle the LG5, especially if you are going to do anything beyond leaving it stock -I don't recall if his trannys lasted for a really long time next to that 3500, and even if they did, do you want to invest in building that thing to last??? You are probably on the right track going with the TGP 4-speed, for what you are wanting from it. I would ditch the whole thing for a five-speed (or six), but that is just me. :good:

Looking forward to seeing more on your build, looks like fun. :Bravo:


1989 SuperCharged 3800 Srs-II (First)Six-Speed GTU
1990 Turbo 3.4 5-Speed T-Type
1990 4.0L 4-Cam 32-Valve V-8 5-Speed Indy GTi (Project)
1990 Stock(!) 3.1 MPFI Auto Indy
1995 LA1/L82 4T60E Z-26
1995 3.4 DOHC Turbo 5-Speed Z-26
Post Reply