Transmission Swap
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- Sweptline.ORG Member
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- State: CA
Transmission Swap
Thinking about swapping my three on the tree for a four-speed, Were four speeds available behind slant sixes in 61 D100's?
Re: Transmission Swap
My '61 Slant Six D200 came originally equipped with a NP420 4spd tranny. It is not61stepside wrote:Thinking about swapping my three on the tree for a four-speed, Were four speeds available behind slant sixes in 61 D100's?
synchro'd in 1st or 2nd gear though. If you could find a NP435 4spd that has provisions
for the parking brake drum, it would be a good candidate, as its synchro'd into 2nd gear.
These Sweptline trannys will bolt to your current bell housing. Your drive shaft length
may possibly need to be addressed. You'll need to find a drive line tunnel
cover with the hole for the shifter. Try the Parts Wanted section. As a caution, the
larger series NP trannys might have too large of an input shaft. Someone who owns
a 400 or larger truck might be able to fill you in.
John
- dodgeboykim
- Sweptline.ORG Pioneer
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Re: Transmission Swap
400 series and larger do indeed have a larger input shaft clutch spline. Might still be able to use that style trans but out put yoke is very large for U joint.
Not sure if smaller U joint yoke can be installed on output.
Not sure if smaller U joint yoke can be installed on output.
My truck is younger than me.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.
66 W100. 70 D 500 , 69 Hiab Speed Loader. 96 Ram 3500 Club Cab Cummin's 5 spd. 97 Ram 1500 Club Cab 5.9 gas auto. 83 W200 LB Propane 360 auto 09 Yammy Rhino 700.
- powerwagon54
- Sweptline.ORG Pioneer
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Re: Transmission Swap
I have the 435 with the e brake. pm sent