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Discussion Starter · #1 ·
can they be put on a 63 beetle - possibility of getting a 1600 1303s engine and gearbox for my bug - but i need to know if it is possible to do it (convert to IRS), and is it possible to use the front discs on a 63 beetle kingpin/linkpin suspension setup?

would the 1303s box give me better cruising on the motorway, as at present i have a early 70's box mated to a 1600 engine... dont know the gearbox code, but is it possible....

if anyone has done this please let me know

much appreciated for the info

Jack
 

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well 1303s is the best gearbox you could wish for with its really high gearing, it`ll give you ideal cruising speed.

the conversion of bits involves, welding 2 A-arm brackets to your existing chassis so that you can fit the rear IRS A-arms/spring plates/torsion bars, you`ll obviously need the driveshafts/gearbox, the only thing im not sure about is the nose cone mounting, i know 1303s are different to all other, i think you should be able to just use the gearbox nose cone from your old box *i think*

front brakes, you`ll need disc brake spindles for king/link pin alternative would be balljoint beam conversion, for which you can easily get spindles, the calipers/discs/backing plates you can use. i think thats it :tick:
:hangloose
 

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Bernice said:
Is there any diff between 1302 and 1303 irs and gearboxs?
3 differences I have come across..

1) generally speaking 1302 gearboxes have the early style front nose cone mount found in most 60s cars, where as the 1303 has a 3 bolt type which is totally differen, but adaptors are available i think, sure i seen them.

2) some gearboxes have 2 side plates, some just have it on one side

3)the gear ratios are mildley different:

1302
1)3.80:1
2)2.06:1
3)1.26:1
4)0.89:1
R)3.61:1
1303
1)3.78:1
2)2.06:1
3)1.26:1
4)0.93:1
R)3.79:1

Final Drive
1302
1300 4.375:1
1600(s) 4.125:1
1303
1300 4.375:1
1600(s)3.875:1

now while that all might look like just numbers what it means is that for example, as i have noticed, with(205/65 R15 Tyres) a 1300 1303 box 70mph was approx 3500 RPM in 4th, a 1300 1302 was about 3700-3750 rpm in 4th. with a 1600 1302 gearbox its about 3150-3200 [email protected] and with a 1600 1303 box i dont know as i dont have one but i would suspect somewhere around 2900rpm @ 70mph(someone correct me?)
 

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Bugsy_Malone 666 said:
1) generally speaking 1302 gearboxes have the early style front nose cone mount found in most 60s cars, where as the 1303 has a 3 bolt type which is totally differen, but adaptors are available i think, sure i seen them.
Just swap the nose cone for a 2 bolt one, it's easy.
 
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