what is the biggest goal differential by a single team in a single stanley cup finals series in nhl history

The Montreal Canadiens have the highest goal differential by a team in the Stanley Cup Finals, with a differential of 89 goals.

	TEAM	DIFF	SERIES	GP	W	L	T	OTL	PTS	PTS%	SOW	SOL	G	GA	PP%	PK%	S/GP	S%	SA/GP	SV%
1	Canadiens	89	Stanley Cup Finals	166	104	61	1	0	209	.630	0	0	484	395	15.0	83.5	31.42	10.0	27.72	.918
2	Avalanche	24	Stanley Cup Finals	17	12	5	0	0	24	.706	0	0	54	30	23.5	88.9	29.12	10.9	28.94	.939
3	Oilers	21	Stanley Cup Finals	51	28	22	1	0	57	.559	0	0	167	146	19.1	81.6	29.94	10.9	26.37	.891
4	Islanders	21	Stanley Cup Finals	24	17	7	0	0	34	.708	0	0	99	78	37.0	80.0	30.04	13.7	30.46	.893
5	Penguins	16	Stanley Cup Finals	35	22	13	0	0	44	.629	0	0	101	85	19.2	87.1	27.83	10.4	30.03	.919
6	Maroons	14	Stanley Cup Finals	12	8	4	0	0	16	.667	0	0	26	12
7	Kings	10	Stanley Cup Finals	16	9	7	0	0	18	.563	0	0	43	33	18.8	88.9	31.31	8.6	28.50	.928
8	Senators	10	Stanley Cup Finals	16	10	4	2	0	22	.688	0	0	37	27
9	Maple Leafs	9	Stanley Cup Finals	105	56	49	0	0	112	.533	0	0	278	269			33.03	8.3	34.88	.921
10	Golden Knights	8	Stanley Cup Finals	10	5	5	0	0	10	.500	0	0	40	32	27.3	83.3	30.80	13.0	29.10	.890
11	Devils	6	Stanley Cup Finals	30	17	13	0	0	34	.567	0	0	69	63	12.2	81.7	27.67	8.3	22.70	.907
12	Metropolitans	5	Stanley Cup Finals	10	4	5	1	0	9	.450	0	0	30	25
13	Lightning	3	Stanley Cup Finals	30	16	14	0	0	32	.533	0	0	73	70	19.0	81.2	28.07	8.7	28.27	.917
14	Flames	2	Stanley Cup Finals	18	8	10	0	0	16	.444	0	0	46	44	22.7	84.4	26.83	9.5	26.28	.907
15	Red Wings	2	Stanley Cup Finals	127	61	66	0	0	122	.480	0	0	316	314	16.8	82.8	31.24	7.9	28.56	.909
16	Cougars	1	Stanley Cup Finals	8	4	4	0	0	8	.500	0	0	19	18
17	Capitals	0	Stanley Cup Finals	9	4	5	0	0	8	.444	0	0	27	27	21.2	80.0	26.11	11.5	35.44	.915
18	Ducks	-2	Stanley Cup Finals	12	7	5	0	0	14	.583	0	0	28	30	13.2	84.8	23.83	9.8	25.25	.901
19	Eskimos	-2	Stanley Cup Finals	2	0	2	0	0	0	.000	0	0	1	3
20	Sharks	-3	Stanley Cup Finals	6	2	4	0	0	4	.333	0	0	12	15	8.3	76.9	23.17	8.6	34.33	.927
21	Hurricanes	-4	Stanley Cup Finals	12	5	7	0	0	10	.417	0	0	26	30	16.2	88.6	23.67	9.2	30.17	.917
22	Millionaires	-4	Stanley Cup Finals	15	6	9	0	0	12	.400	0	0	42	46
23	Senators	-5	Stanley Cup Finals	5	1	4	0	0	2	.200	0	0	11	16	16.0	85.0	20.20	10.9	24.80	.871
24	Predators	-6	Stanley Cup Finals	6	2	4	0	0	4	.333	0	0	13	19	22.2	90.9	29.00	7.5	24.00	.868
25	Tigers	-8	Stanley Cup Finals	2	0	2	0	0	0	.000	0	0	1	9